MPEC 2020-D141 : 2020 DL4
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M.P.E.C. 2020-D141 Issued 2020 February 29, 14:58 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 DL4
Observations:
K20D04L* C2020 02 27.25465 10 02 40.60 +08 04 24.9 21.2 GVED141G96
K20D04L C2020 02 27.25976 10 02 40.48 +08 05 17.5 20.9 GVED141G96
K20D04L C2020 02 27.26488 10 02 40.35 +08 06 10.9 20.7 GVED141G96
K20D04L C2020 02 27.27000 10 02 40.23 +08 07 04.3 20.8 GVED141G96
K20D04L C2020 02 27.37304 10 02 37.56 +08 24 51.9 VED141I52
K20D04L C2020 02 27.37472 10 02 37.55 +08 25 10.3 21.8 GVED141I52
K20D04L C2020 02 27.37883 10 02 37.45 +08 25 53.4 VED141I52
K20D04L C2020 02 27.38050 10 02 37.43 +08 26 10.7 20.1 GVED141I52
K20D04L KC2020 02 27.88614010 02 38.712+09 54 12.08 20.0 GVED141J04
K20D04L KC2020 02 27.89078410 02 38.612+09 55 01.51 21.2 GVED141J04
K20D04L KC2020 02 27.89549810 02 38.526+09 55 50.44 21.2 GVED141J04
K20D04L |C2020 02 28.09466 10 02 36.66 +10 31 37.2 21.0 GVED141807
K20D04L |C2020 02 28.09776 10 02 36.59 +10 32 09.9 21.0 GVED141807
K20D04L |C2020 02 28.10076 10 02 36.52 +10 32 41.6 21.1 GVED141807
K20D04L C2020 02 28.16884 10 02 36.78 +10 43 43.1 VED141I52
K20D04L C2020 02 28.17123 10 02 36.77 +10 44 05.6 20.4 GVED141I52
K20D04L C2020 02 28.17362 10 02 36.74 +10 44 30.9 20.5 GVED141I52
K20D04L KC2020 02 28.24700910 02 33.87 +10 57 20.5 20.9 VuED141H21
K20D04L KC2020 02 28.25004610 02 33.79 +10 57 52.5 20.9 VuED141H21
K20D04L KC2020 02 28.25447010 02 33.68 +10 58 38.7 21.3 VuED141H21
K20D04L KC2020 02 28.25660010 02 33.64 +10 59 01.2 20.8 VuED141H21
K20D04L KC2020 02 28.94080110 02 31.20 +12 59 37.7 21.2 GVED141L01
K20D04L KC2020 02 28.94344110 02 31.16 +13 00 05.2 21.4 GVED141L01
K20D04L KC2020 02 28.94608510 02 31.14 +13 00 33.0 21.2 GVED141L01
K20D04L C2020 02 29.17895 10 02 32.39 +13 41 56.7 21.4 GVED141I52
K20D04L |C2020 02 29.19027 10 02 29.97 +13 44 56.3 21.1 VuED141807
K20D04L |C2020 02 29.19671 10 02 29.84 +13 46 04.8 20.9 VuED141807
K20D04L C2020 02 29.19717 10 02 32.03 +13 45 11.5 20.6 GVED141I52
K20D04L C2020 02 29.20128 10 02 31.92 +13 45 55.4 21.3 GVED141I52
K20D04L C2020 02 29.20379 10 02 31.88 +13 46 21.9 21.0 GVED141I52
Observer details:
807 Cerro Tololo Observatory, La Serena. Observers T. Linder, R. Holmes.
1.00-m f/10.0 astrograph + CCD, 0.61-m f/6.5 astrograph + 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.
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes. 0.81-m f/4.0
astrograph + 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.
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.
L01 Visnjan Observatory, Tican. Observers K. Korlevic, F. Valentine, G.
Kervina. Measurer K. Korlevic. 1.0-m f/2.9 reflector + CCD.
Orbital elements:
2020 DL4 Earth MOID = 0.1514 AU
Epoch 2020 May 31.0 TT = JDT 2459000.5 Alexandersen
M 18.28173 (2000.0) P Q
n 0.72196881 Peri. 59.38766 -0.76116258 +0.62482478
a 1.2306194 Node 157.72101 -0.62917580 -0.77643615
e 0.1162665 Incl. 27.29543 +0.15738279 -0.08210300
P 1.37 H 24.3 G 0.15 U 7
Residuals in seconds of arc
200227 G96 0.0 0.4+ 200227 J04 0.1- 0.6- 200228 L01 0.3- 0.6+
200227 G96 0.1+ 0.1- 200228 807 0.0 0.2- 200228 L01 0.0 0.0
200227 G96 0.2+ 0.2+ 200228 807 0.1+ 0.2- 200228 L01 0.5+ 0.2-
200227 G96 0.3+ 0.5+ 200228 807 0.1+ 0.2- 200229 I52 0.2+ 0.3-
200227 I52 0.5- 1.1- 200228 I52 0.2- 0.0 200229 807 0.4- 0.1+
200227 I52 0.0 0.2- 200228 I52 0.1+ 0.1+ 200229 807 0.1- 0.2+
200227 I52 0.1- 0.3+ 200228 H21 0.1+ 0.5+ 200229 I52 0.3+ 0.1-
200227 I52 0.2+ 0.3+ 200228 H21 0.1- 0.5+ 200229 I52 0.1- 0.0
200227 J04 0.1+ 0.4- 200228 H21 0.2- 0.1+ 200229 I52 0.1+ 0.3-
200227 J04 0.1- 0.1+ 200228 H21 0.0 0.2+
Ephemeris:
2020 DL4 a,e,i = 1.23, 0.12, 27 q = 1.0875
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2020 01 30 10 03 55.3 -34 32 22 0.3217 1.1966 124.4 42.8 23.9
...
2020 02 14 10 04 38.2 -21 16 06 0.2150 1.1701 145.1 28.9 22.6
...
2020 02 22 10 03 25.9 -05 54 59 0.1741 1.1567 163.1 14.4 21.6
...
2020 02 28 10 02 35.5 +10 14 19 0.1586 1.1470 170.4 8.3 21.2
2020 02 29 10 02 31.0 +13 10 27 0.1576 1.1455 168.4 10.0 21.2
2020 03 01 10 02 28.2 +16 07 57 0.1572 1.1439 165.9 12.2 21.3
...
2020 03 07 10 03 00.9 +33 15 41 0.1644 1.1349 147.9 27.7 21.9
...
2020 03 15 10 06 59.8 +50 54 48 0.1952 1.1238 127.4 44.6 22.7
...
2020 03 30 10 30 26.0 +67 48 46 0.2817 1.1064 105.2 60.6 23.9
A. U. Tomatic (C) Copyright 2020 MPC M.P.E.C. 2020-D141
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