MPEC 2020-D131 : 2020 DA4
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M.P.E.C. 2020-D131 Issued 2020 February 28, 22:29 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets and routine data on comets. They are published
on behalf of Division F of the International Astronomical Union by the
Minor Planet Center, Smithsonian Astrophysical Observatory,
Cambridge, MA 02138, U.S.A.
Prepared using the Tamkin Foundation Computer Network
MPC@CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
2020 DA4
Observations:
K20D04A* C2020 02 27.19323 09 16 04.45 +02 32 14.6 19.1 GVED131G96
K20D04A C2020 02 27.19891 09 16 04.52 +02 31 36.3 18.9 GVED131G96
K20D04A C2020 02 27.20459 09 16 04.57 +02 30 57.9 19.1 GVED131G96
K20D04A C2020 02 27.21026 09 16 04.62 +02 30 19.5 19.0 GVED131G96
K20D04A KC2020 02 27.23205 09 16 02.88 +02 27 58.4 oED131711
K20D04A KC2020 02 27.23463 09 16 02.88 +02 27 41.1 oED131711
K20D04A KC2020 02 27.23717 09 16 02.88 +02 27 23.4 oED131711
K20D04A !C2020 02 27.26894 09 16 06.81 +02 23 29.2 19.1 RtED131673
K20D04A !C2020 02 27.27503 09 16 06.85 +02 22 46.8 tED131673
K20D04A C2020 02 27.35843 09 16 05.86 +02 13 06.2 18.9 GVED131I52
K20D04A C2020 02 27.36042 09 16 05.94 +02 12 51.9 19.1 GVED131I52
K20D04A C2020 02 27.36066 09 16 05.95 +02 12 50.0 19.1 GVED131I52
K20D04A C2020 02 27.36265 09 16 05.98 +02 12 35.7 19.0 GVED131I52
K20D04A KC2020 02 27.49750 09 16 34.22 +02 01 32.3 19.3 VqED131E23
K20D04A KC2020 02 27.51000 09 16 34.43 +01 59 58.6 19.1 VqED131E23
K20D04A KC2020 02 27.52250 09 16 34.58 +01 58 25.3 19.0 VqED131E23
K20D04A KC2020 02 27.78213 09 17 13.63 +01 17 53.0 18.5 VtED131L04
K20D04A KC2020 02 27.78759 09 17 13.94 +01 17 07.3 18.4 VtED131L04
K20D04A KC2020 02 27.79374 09 17 14.28 +01 16 16.6 18.6 VtED131L04
K20D04A KC2020 02 27.83790809 17 23.63 +01 10 46.5 18.7 GVED131Z84
K20D04A KC2020 02 27.84710009 17 24.11 +01 09 29.0 18.6 GVED131Z84
K20D04A C2020 02 27.84946109 17 28.461+01 09 49.74 18.8 GVED131J04
K20D04A C2020 02 27.84980109 17 28.512+01 09 46.04 19.3 GVED131J04
K20D04A C2020 02 27.85014809 17 28.485+01 09 43.51 19.0 GVED131J04
K20D04A KC2020 02 27.85629309 17 24.59 +01 08 11.5 18.6 GVED131Z84
K20D04A KC2020 02 27.90160609 17 24.94 +01 00 47.1 18.7 GVED131J95
K20D04A KC2020 02 27.90391809 17 25.06 +01 00 26.6 18.7 GVED131J95
K20D04A KC2020 02 27.90620209 17 25.20 +01 00 07.1 18.5 GVED131J95
K20D04A KC2020 02 27.91848 09 17 25.98 +00 58 46.8 18.6 VqED131I93
K20D04A KC2020 02 27.92157 09 17 26.12 +00 58 19.8 18.8 VqED131I93
K20D04A KC2020 02 27.92537 09 17 26.28 +00 57 46.9 18.5 VqED131I93
K20D04A KC2020 02 27.94106509 17 26.88 +00 55 03.3 18.8 GVED131Z80
K20D04A KC2020 02 27.94713409 17 27.01 +00 54 02.9 19.0 GVED131Z99
K20D04A KC2020 02 27.94800909 17 27.21 +00 54 02.6 18.6 GVED131Z80
K20D04A KC2020 02 27.95034809 17 27.19 +00 53 35.2 19.0 GVED131Z99
K20D04A KC2020 02 27.95356809 17 27.41 +00 53 06.7 19.0 GVED131Z99
K20D04A KC2020 02 27.95372709 17 27.65 +00 53 14.3 18.3 GVED131J69
K20D04A KC2020 02 27.95495409 17 27.55 +00 53 01.6 18.7 GVED131Z80
K20D04A KC2020 02 27.96159809 17 28.04 +00 52 04.6 18.2 GVED131J69
K20D04A KC2020 02 27.96946909 17 28.43 +00 50 56.0 18.2 GVED131J69
K20D04A KC2020 02 27.98457 09 17 45.47 +00 55 38.4 18.3 VUED131X31
K20D04A KC2020 02 27.98737 09 17 45.63 +00 55 14.3 18.5 VUED131X31
K20D04A KC2020 02 27.99283 09 17 45.93 +00 54 25.3 18.2 VUED131X31
K20D04A HC2020 02 28.00723 09 17 27.70 +00 45 36.7 VED131204
K20D04A KC2020 02 28.01869 09 17 28.33 +00 43 53.9 18.5 GVED131204
K20D04A KC2020 02 28.06175 09 17 54.69 +00 38 08.6 18.9 GVED131W34
K20D04A KC2020 02 28.06403 09 17 54.76 +00 37 47.8 19.0 GVED131W34
K20D04A KC2020 02 28.06642 09 17 54.89 +00 37 25.7 18.8 GVED131W34
K20D04A KC2020 02 28.06872 09 17 55.05 +00 37 05.3 18.9 GVED131W34
K20D04A KC2020 02 28.07420 09 17 55.34 +00 36 14.3 18.7 GVED131W34
K20D04A C2020 02 28.07457809 17 32.38 +00 35 31.2 17.9 GVED131C95
K20D04A C2020 02 28.07741309 17 32.56 +00 35 05.2 17.6 GVED131C95
K20D04A KC2020 02 28.07929 09 17 55.67 +00 35 27.5 18.8 GVED131W34
K20D04A |C2020 02 28.08335 09 17 53.14 +00 40 43.1 18.8 VuED131807
K20D04A |C2020 02 28.08479 09 17 53.20 +00 40 29.9 18.8 VuED131807
K20D04A KC2020 02 28.08487 09 17 55.96 +00 34 36.2 18.9 GVED131W34
K20D04A |C2020 02 28.08601 09 17 53.23 +00 40 18.4 19.3 VuED131807
K20D04A C2020 02 28.15626 09 18 07.62 +00 23 42.0 18.6 GVED131I52
K20D04A C2020 02 28.15639 09 18 07.58 +00 23 40.6 18.8 GVED131I52
K20D04A C2020 02 28.15767 09 18 07.66 +00 23 28.6 18.2 GVED131I52
K20D04A C2020 02 28.16502 09 18 07.97 +00 22 17.8 VED131I52
K20D04A KC2020 02 28.19068 09 18 04.33 +00 17 42.8 18.6 GVED131H36
K20D04A KC2020 02 28.19694 09 18 04.58 +00 16 42.3 18.9 GVED131H36
K20D04A KC2020 02 28.20328 09 18 04.85 +00 15 41.8 18.7 GVED131H36
K20D04A KC2020 02 28.20778 09 18 05.04 +00 14 58.1 18.6 GVED131H36
K20D04A KC2020 02 28.21641 09 18 05.48 +00 13 33.8 18.8 GVED131734
K20D04A KC2020 02 28.21937 09 18 05.61 +00 13 04.9 18.8 GVED131734
K20D04A KC2020 02 28.22233 09 18 05.73 +00 12 35.5 18.8 GVED131734
K20D04A KC2020 02 28.22382 09 18 05.79 +00 12 21.4 18.8 GVED131734
K20D04A 1C2020 02 28.30299 09 18 17.82 -00 01 23.3 LED131658
K20D04A 1C2020 02 28.30366 09 18 17.86 -00 01 30.3 LED131658
K20D04A 1C2020 02 28.30432 09 18 17.91 -00 01 36.8 LED131658
K20D04A 1C2020 02 28.30565 09 18 18.00 -00 01 50.1 LED131658
K20D04A 1C2020 02 28.30631 09 18 18.04 -00 01 56.7 LED131658
K20D04A KC2020 02 28.77321809 19 55.97 -01 27 18.1 19.6 GVED131L34
K20D04A KC2020 02 28.78082509 19 56.83 -01 28 50.2 18.8 GVED131L34
K20D04A KC2020 02 28.78650809 19 57.48 -01 30 00.1 18.9 GVED131L34
K20D04A KC2020 02 28.79284709 19 58.12 -01 31 18.5 19.3 GVED131L34
K20D04A KC2020 02 28.79813 09 19 55.93 -01 33 25.5 18.7 VSED131C43
K20D04A KC2020 02 28.80020 09 19 56.18 -01 33 51.3 18.8 VSED131C43
K20D04A KC2020 02 28.80233 09 19 56.42 -01 34 17.8 19.0 VSED131C43
K20D04A KC2020 02 28.80445 09 19 56.68 -01 34 43.6 19.1 VSED131C43
K20D04A KC2020 02 28.80655 09 19 56.93 -01 35 10.3 19.1 VSED131C43
K20D04A KC2020 02 28.83611 09 20 01.28 -01 40 24.5 18.5 GVED131K96
K20D04A KC2020 02 28.84190 09 20 01.81 -01 41 37.0 17.8 GVED131K96
K20D04A KC2020 02 28.84519 09 20 02.10 -01 42 17.9 19.6 GVED131K96
K20D04A KC2020 02 28.85077 09 20 03.99 -01 43 50.4 18.2 RoED131159
K20D04A KC2020 02 28.85666 09 20 03.43 -01 45 14.3 18.1 GVED131595
K20D04A KC2020 02 28.85943 09 20 04.82 -01 45 40.5 18.2 RoED131159
K20D04A KC2020 02 28.86270 09 20 04.02 -01 46 30.7 18.4 GVED131595
K20D04A KC2020 02 28.86534 09 20 05.34 -01 46 55.0 18.3 RoED131159
K20D04A KC2020 02 28.86601 09 20 05.44 -01 47 04.2 17.7 GVED131K63
K20D04A KC2020 02 28.86673 09 20 04.39 -01 47 21.5 18.4 GVED131595
K20D04A KC2020 02 28.86876 09 20 05.68 -01 47 38.5 18.4 GVED131K63
K20D04A KC2020 02 28.86946309 20 04.63 -01 47 53.7 18.2 GVED131L01
K20D04A KC2020 02 28.87105309 20 04.79 -01 48 14.3 18.4 GVED131L01
K20D04A KC2020 02 28.87182 09 20 05.96 -01 48 18.0 18.1 GVED131K63
K20D04A IC2020 02 28.87263009 20 04.92 -01 48 34.1 18.3 GVED131L01
K20D04A KC2020 02 28.87422809 20 05.06 -01 48 54.2 18.4 GVED131L01
K20D04A KC2020 02 28.87777 09 20 06.45 -01 49 32.1 18.0 RVED131160
K20D04A KC2020 02 28.88056 09 20 06.62 -01 50 08.2 VED131160
K20D04A KC2020 02 28.88463 09 20 07.05 -01 51 00.3 18.2 RVED131160
K20D04A KC2020 02 28.88577 09 20 07.60 -01 51 23.2 18.2 GVED131203
K20D04A KC2020 02 28.88882 09 20 07.41 -01 51 53.9 18.2 RVED131160
K20D04A KC2020 02 28.89065 09 20 11.37 -01 52 16.6 18.6 VqED131958
K20D04A KC2020 02 28.89169 09 20 07.74 -01 52 30.2 VED131160
K20D04A C2020 02 28.89615 09 20 18.66 -01 52 04.2 17.7 RVED131J04
K20D04A C2020 02 28.89638 09 20 18.69 -01 52 07.2 17.5 RVED131J04
K20D04A C2020 02 28.89662 09 20 18.69 -01 52 10.0 17.5 RVED131J04
K20D04A KC2020 02 28.89697 09 20 08.67 -01 53 47.0 18.2 GVED131203
K20D04A KC2020 02 28.90362 09 20 12.55 -01 55 04.0 18.4 VqED131958
K20D04A KC2020 02 28.90660 09 20 09.56 -01 55 51.4 17.8 GVED131203
K20D04A KC2020 02 28.91021 09 20 13.19 -01 56 29.2 18.6 VqED131958
Observer details:
159 Monte Agliale. Observer F. Biagini. Measurers S. Donati, F. Biagini, F.
Ciabattari. 0.50-m f/4.6 reflector + CCD.
160 Castelmartini. Observers M. Jaeger, E. Prosperi, S. Prosperi. Measurer E.
Prosperi. 0.35-m f/10 Schmidt-Cassegrain + CCD.
203 GiaGa Observatory. Observers S. Foglia, G. Galli. Measurer G. Galli.
0.36-m f/5.76 Schmidt-Cassegrain + CCD.
204 Schiaparelli Observatory. Observer L. Buzzi. 0.84-m f/3.5 reflector + CCD.
595 Farra d'Isonzo. Observers U. Montanar, E. Pettarin. Measurer E.
Pettarin. 0.40-m f/5.15 reflector + CCD.
658 National Research Council of Canada. Observer D. D. Balam. 1.82-m
reflector + CCD.
673 Table Mountain Observatory, Wrightwood. Observer J. Pittichova. 1.0-m
f/15 reflector + CCD.
711 McDonald Observatory, Fort Davis. Observer J. G. Ries. 2.1-m reflector +
CCD + focal reducer.
734 Farpoint Observatory, Eskridge. Observers G. Hug, D. Cromer, D. Goodin.
Measurer D. Cromer. 0.7-m reflector + CCD.
807 Cerro Tololo Observatory, La Serena. Observers T. Linder, R. Holmes.
0.61-m f/6.5 astrograph + CCD.
958 Observatoire de Dax. Observer P. Dupouy. 0.51-m f/6 reflector + CCD.
C43 Hoyerswerda. Observer P. Lindner. 0.30-m f/6.3 Schmidt-Cassegrain + CCD.
C95 SATINO Remote Observatory, Haute Provence. Observer J. Jahn. 0.60-m f/3.2
Newtonian reflector + CCD.
E23 Arcadia. Observer A. Hidas. 0.35-m f/1.9 reflector + CCD.
G96 Mt. Lemmon Survey. Observer T. A. Pruyne. Measurers E. J. Christensen, G.
A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H. Groeller, R. A.
Kowalski, S. M. Larson, G. J. Leonard, T. A. Pruyne, D. Rankin, R. L. Seaman,
F. C. Shelly, K. W. Wierzchos. 1.5-m reflector + 10K CCD.
H36 Sandlot Observatory, Scranton. Observer G. Hug. 0.56-m f/5.1 reflector +
CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observer G. J. Leonard.
Measurers E. J. Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D.
Grauer, H. Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, T. A.
Pruyne, D. Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos. 1.0-m
reflector + CCD.
I93 St Pardon de Conques. Observer F. Losse. 0.40-m f/3.7 reflector + CCD.
J04 ESA Optical Ground Station, Tenerife. Observer P. Ruiz. Measurers M.
Micheli, D. Koschny, L. Conversi, M. Busch, A. Knofel, E. Schwab. 1.0-m
f/4.4 reflector + CCD.
J69 North Observatory, Clanfield. Observer D. Briggs. 0.41-m f/4.5 Newtonian
reflector + CCD.
J95 Great Shefford. Observer P. Birtwhistle. 0.41-m f/6.3 Schmidt-Cassegrain
+ CCD.
K63 G. Pascoli Observatory, Castelvecchio Pascoli. Observer R. Bacci. 0.4-m
f/3.2 Newtonian reflector + CCD.
K96 Savelli Observatory. Observers A. Brosio, A. De Pieri. 0.5-m f/8.0
Ritchey-Chretien + CCD.
L01 Visnjan Observatory, Tican. Observers K. Korlevic, I. Lyon, G. Kervina, V.
Dobos. Measurer K. Korlevic. 1.0-m f/2.9 reflector + CCD.
L04 ROASTERR-1 Observatory, Cluj-Napoca. Observer L. Hudin. 0.3-m f/5
reflector + CCD.
L34 Galhassin Robotic Telescope, Isnello. Observer A. Nastasi. 0.40-m
reflector + CCD.
W34 Squirrel Valley Observatory, Columbus. Observer R. L. Flynn. 0.35-m f/1.9
Schmidt-Cassegrain + CCD.
X31 Galileo Galilei Observatory, Oro Verde. Observer C. Fornari. 0.40-m f/8
Ritchey-Chretien + CCD.
Z80 Northolt Branch Observatory. Observer G. Wells. 0.25-m f/8.0
Ritchey-Chretien + CCD.
Z84 Calar Alto-Schmidt. Observer E. Schwab. Measurers E. Schwab, D. Koschny,
M. Micheli. 0.8-m f/3 Schmidt + CCD.
Z99 Clixby Observatory, Cleethorpes. Observer A. Mickleburgh. 0.36-m f/8
Schmidt-Cassegrain + CCD.
Orbital elements:
2020 DA4 Earth MOID = 0.0053 AU
Epoch 2020 May 31.0 TT = JDT 2459000.5 Alexandersen
M 26.71094 (2000.0) P Q
n 0.47982303 Peri. 19.83469 -0.90802004 +0.41892471
a 1.6159031 Node 184.93262 -0.38637331 -0.83865834
e 0.4307513 Incl. 0.86793 -0.16191132 -0.34807222
P 2.05 H 25.7 G 0.15 U 6
Residuals in seconds of arc
200227 G96 0.2+ 0.0 200227 J69 0.1+ 0.1- 200228 L34 0.4+ 0.5+
200227 G96 0.3+ 0.0 200227 J69 0.2- 0.9+ 200228 L34 0.3- 0.1+
200227 G96 0.2+ 0.0 200227 X31 0.1+ 0.1- 200228 C43 0.3+ 0.2+
200227 G96 0.2+ 0.0 200227 X31 0.2- 0.4+ 200228 C43 0.2+ 0.0
200227 711 0.2- 0.5- 200227 X31 0.8- 0.4- 200228 C43 0.0 0.1-
200227 711 0.3- 0.1- 200228 204 0.3+ 0.4- 200228 C43 0.0 0.3+
200227 711 0.3- 0.4- 200228 204 0.1- 0.0 200228 C43 0.0 0.4-
200227 673 0.3+ 0.1+ 200228 W34 1.0+ 0.3- 200228 K96 0.3- 0.7-
200227 673 0.3+ 0.0 200228 W34 0.0 0.3- 200228 K96 0.1+ 0.5-
200227 I52 0.2- 0.1+ 200228 W34 0.2- 0.5- 200228 K96 0.2+ 0.0
200227 I52 0.3+ 0.0 200228 W34 0.1+ 0.2+ 200228 159 0.4+ 0.2+
200227 I52 0.4+ 0.1- 200228 W34 0.3- 0.5- 200228 595 0.1+ 0.2-
200227 I52 0.1+ 0.1- 200228 C95 0.1+ 0.9- 200228 159 0.3+ 0.3-
200227 E23 0.7- 0.8+ 200228 C95 0.5- 0.8- 200228 595 0.1+ 0.1-
200227 E23 0.0 0.0 200228 W34 0.5+ 0.5- 200228 159 0.3- 0.2+
200227 E23 0.1+ 0.0 200228 807 0.0 0.1+ 200228 K63 0.1+ 0.1-
200227 L04 0.1+ 0.0 200228 807 0.2+ 0.1+ 200228 595 0.1- 0.3+
200227 L04 0.1+ 0.5- 200228 W34 0.4+ 0.3- 200228 K63 0.1- 0.6+
200227 L04 0.1+ 0.3- 200228 807 0.0 0.2- 200228 L01 0.2- 0.1+
200227 Z84 0.1- 0.4+ 200228 I52 0.5+ 0.4+ 200228 L01 0.0 0.3-
200227 Z84 0.3- 0.3+ 200228 I52 0.2- 0.2+ 200228 K63 0.2- 0.0
200227 J04 0.1- 0.5+ 200228 I52 0.1- 0.4+ 200228 L01 0.3- 0.0
200227 J04 0.3+ 0.3- 200228 I52 1.4- 0.6- 200228 L01 0.4- 0.3+
200227 J04 0.4- 0.1+ 200228 H36 0.2+ 0.1- 200228 160 0.3+ 0.6+
200227 Z84 0.1- 0.6+ 200228 H36 0.0 0.3- 200228 160 1.0- 0.2+
200227 J95 0.1- 0.4+ 200228 H36 0.1+ 0.4+ 200228 160 0.1- 0.2+
200227 J95 0.2- 0.1- 200228 H36 0.2+ 0.2+ 200228 203 0.1- 0.2-
200227 J95 0.0 0.1+ 200228 734 0.0 0.1+ 200228 160 0.3- 0.3+
200227 I93 0.0 0.1+ 200228 734 0.1+ 0.0 200228 958 0.9+ 0.2-
200227 I93 0.2+ 0.0 200228 734 0.1+ 0.6- 200228 160 0.8+ 0.8+
200227 I93 0.2+ 0.2+ 200228 734 0.0 0.2- 200228 J04 0.1- 0.2-
200227 Z80 1.0+ 0.1+ 200228 658 0.3- 0.2- 200228 J04 0.1+ 0.3-
200227 Z99 0.4- 0.2- 200228 658 0.3- 0.5- 200228 J04 0.3- 0.0
200227 Z80 0.5+ 0.3+ 200228 658 0.2- 0.3- 200228 203 0.1+ 0.1-
200227 Z99 0.4- 0.4+ 200228 658 0.1- 0.2- 200228 958 0.1- 0.4-
200227 Z99 0.2+ 0.2+ 200228 658 0.1- 0.2- 200228 203 0.0 0.3-
200227 J69 0.3+ 0.2+ 200228 L34 0.2+ 0.3- 200228 958 0.2+ 0.3-
200227 Z80 0.1+ 0.5+ 200228 L34 0.1+ 0.7+
Ephemeris:
2020 DA4 a,e,i = 1.62, 0.43, 1 q = 0.9199
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2020 01 29 09 12 36.0 +12 13 29 0.2020 1.1846 170.6 7.8 23.1
...
2020 02 13 09 11 23.1 +10 34 51 0.1083 1.0944 171.6 7.5 21.6
...
2020 02 21 09 11 33.1 +08 19 51 0.06395 1.0505 164.3 14.7 20.7
...
2020 02 27 09 15 38.9 +02 55 40 0.03239 1.0204 158.9 20.4 19.3
2020 02 28 09 17 33.8 +00 50 37 0.02727 1.0157 157.9 21.5 19.0
2020 02 29 09 20 26.9 -02 11 20 0.02221 1.0110 156.7 22.8 18.5
...
2020 03 06 20 21 24.0 -44 17 32 0.01178 0.9850 52.9 126.6 21.4
...
2020 03 14 20 58 43.4 -19 47 23 0.05219 0.9561 42.2 135.7 25.5
...
2020 03 29 21 12 45.9 -15 00 53 0.1320 0.9239 52.4 121.1 26.1
A. U. Tomatic (C) Copyright 2020 MPC M.P.E.C. 2020-D131
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