MPEC 2021-L116 : 2019 YY5
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M.P.E.C. 2021-L116 Issued 2021 June 10, 14:00 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
2019 YY5
Revision to MPEC 2020-A29
Additional Observations:
K19Y05Y C2010 06 04.34833616 20 19.611+13 02 40.31 22.59GVEL116F51
K19Y05Y C2010 06 04.36046616 20 17.849+13 02 52.39 22.26GVEL116F51
K19Y05Y C2010 06 08.48275216 10 32.775+14 03 50.63 21.87GVEL116F51
K19Y05Y C2010 06 08.49503016 10 30.897+14 04 00.59 21.53GVEL116F51
K19Y05Y ZC2011 03 05.30772110 07 59.742+09 38 35.75 21.7 GVEL116G96
K19Y05Y ZC2011 03 05.31598910 07 58.879+09 38 45.96 21.9 GVEL116G96
K19Y05Y KC2019 05 06.53374516 03 36.239+04 42 19.12 23.53GVEL116F51
K19Y05Y KC2019 05 30.48708215 19 47.322+10 03 06.02 23.06GVEL116F51
K19Y05Y KC2019 06 29.34442814 33 03.867+10 33 11.13 23.43GVEL116F52
K19Y05Y KC2019 07 05.34476614 28 21.795+09 50 29.63 23.16GVEL116F51
K19Y05Y C2020 01 24.43349310 04 16.238-08 26 08.75 20.56GVEL116F51
K19Y05Y C2020 01 24.43622710 04 15.785-08 26 02.93 20.36GVEL116F51
K19Y05Y C2020 03 22.36873308 48 55.570+15 36 44.91 23.20GVEL116F51
K19Y05Y C2020 03 22.38126708 48 55.718+15 36 51.34 22.54GVEL116F51
K19Y05Y C2020 03 22.39384408 48 55.840+15 36 57.10 22.99GVEL116F51
K19Y05Y C2020 03 23.35612808 49 10.756+15 44 51.30 22.22GVEL116F51
K19Y05Y ZC2021 05 20.40291120 34 19.703+09 03 24.01 21.4 GVEL116G96
K19Y05Y ZC2021 05 20.41327420 34 21.801+09 03 43.30 21.0 GVEL116G96
K19Y05Y C2021 06 05.41088 21 43 16.24 +19 08 23.3 VEL116I52
K19Y05Y C2021 06 05.41598 21 43 17.94 +19 08 37.1 21.2 GVEL116I52
K19Y05Y C2021 06 05.42109 21 43 19.60 +19 08 50.4 VEL116I52
K19Y05Y KC2021 06 09.40307422 07 08.90 +22 07 27.7 21.45GVEL116I52
K19Y05Y KC2021 06 09.40847622 07 10.97 +22 07 42.9 21.08GVEL116I52
K19Y05Y KC2021 06 09.41273022 07 12.57 +22 07 54.3 21.46GVEL116I52
Observer details:
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, K. Chambers, T. Lowe, A.
Schultz, I. Smith. Measurers S. Chastel, M. Huber, Y. Ramanjooloo, R.
Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien + CCD.
F52 Pan-STARRS 2, Haleakala. Observers J. Bulger, K. Chambers, T. Dukes, T.
Lowe, A. Schultz, I. Smith. Measurers S. Chastel, M. Huber, Y.
Ramanjooloo, R. Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey. Observers S. M. Larson, D. Rankin. Measurers M.
Micheli, B. Gray. 1.5-m reflector + CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observers K. W. Wierzchos, R. A.
Kowalski. Measurers E. J. Christensen, B. Gray, D. Rankin, F. C. Shelly,
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, R. L. Seaman, K. W.
Wierzchos. 1.0-m reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
100604 F51 0.27+ 0.05+ 210609 I52 0.14+ 0.02+ MPO545157 -0.06 days
Orbital elements:
2019 YY5 Earth MOID = 0.1691 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 228.81681 (2000.0) P Q
n 0.54380402 Peri. 215.17840 +0.95375188 -0.29212077
a 1.4865326 Node 161.41620 +0.30044851 +0.93377235
e 0.5485720 Incl. 12.84908 -0.00938342 +0.20672361
P 1.81 H 20.8 G 0.15 U 1
Residuals in seconds of arc
100604 F51 0.0 0.2- 200107 I52 0.9- 0.8- 200216 G96 0.1- 0.3+
100604 F51 0.3- 0.3+ 200107 I52 (0.1+ 1.7-) 200216 G96 0.5- 0.1+
100608 F51 0.3+ 0.0 200107 I52 0.3+ 0.7- 200222 807 0.3- 0.1+
100608 F51 0.2- 0.0 200117 474 0.7- 0.1+ 200222 807 0.3- 0.2+
110305 G96 0.7+ 0.8- 200117 474 0.1- 0.6+ 200222 807 0.2- 0.1-
110305 G96 0.3- 0.1+ 200117 474 0.5+ 0.5- 200222 807 0.1+ 0.5-
190506 F51 0.3+ 0.1- 200119 F51 0.1+ 0.1- 200222 807 0.2- 0.7-
190530 F51 0.2- 0.1+ 200119 F51 0.1- 0.1+ 200222 807 0.3+ 0.5-
190629 F52 0.0 0.2+ 200119 F51 0.1+ 0.1+ 200225 807 0.2+ 0.5+
190705 F51 0.1+ 0.2+ 200119 F51 0.0 0.2+ 200225 807 0.4+ 0.3+
191230 F51 0.0 0.0 200124 F51 0.2- 0.0 200225 807 0.9+ 0.7+
191230 F51 0.0 0.1+ 200124 F51 0.3- 0.1- 200227 291 1.4+ 0.5+
191230 F51 0.0 0.1+ 200125 F51 0.1- 0.0 200227 291 0.4+ 0.4+
191230 F51 0.1+ 0.1- 200125 F51 0.1+ 0.1- 200304 H21 0.9+ 0.7-
191231 L01 0.1- 0.3+ 200125 F51 0.0 0.2+ 200304 H21 1.1+ 0.4-
191231 L01 0.9- 1.4- 200125 F51 0.0 0.1+ 200304 H21 0.7+ 0.6-
191231 L01 0.6- 0.1- 200128 G96 0.2- 0.1- 200322 F51 0.0 0.1+
200101 H01 0.0 0.0 200128 G96 0.0 0.2+ 200322 F51 0.2+ 0.3+
200101 H01 0.0 0.1- 200128 G96 0.1+ 0.2+ 200322 F51 0.1- 0.2-
200101 H01 0.1- 0.4+ 200128 G96 0.3+ 0.2- 200323 F51 0.1- 0.4-
200101 H01 0.0 0.1+ 200129 G96 0.0 0.2+ 210520 G96 0.3- 0.3-
200102 474 0.2+ 0.2- 200129 G96 0.1- 0.3+ 210520 G96 0.2+ 0.8-
200102 474 0.4+ 0.2- 200129 G96 0.0 0.0 210605 I52 0.4- 0.2-
200102 474 1.3- 0.7- 200129 F52 0.2+ 0.3+ 210605 I52 0.1+ 0.2+
200102 474 0.8+ 0.7+ 200129 F52 0.0 0.0 210605 I52 0.1- 0.1-
200104 I52 1.4- 0.2+ 200129 F52 0.1+ 0.1- 210609 I52 0.1- 0.3-
200104 I52 0.2- 0.0 200216 G96 0.2+ 0.1+ 210609 I52 0.1+ 0.0
200104 I52 0.5+ 0.3+ 200216 G96 0.2+ 0.0 210609 I52 0.2- 0.4-
Ephemeris:
2019 YY5 a,e,i = 1.49, 0.55, 13 q = 0.6711
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 05 11 20 05 31.8 +04 34 31 0.7471 1.3951 104.1 44.6 22.6
...
2021 05 26 20 54 43.0 +12 12 26 0.5704 1.2680 102.8 51.2 22.0
...
2021 06 03 21 30 27.0 +17 24 49 0.4911 1.1970 99.4 56.7 21.7
...
2021 06 09 22 04 33.2 +21 49 07 0.4410 1.1426 95.2 62.2 21.5
2021 06 10 22 11 01.2 +22 34 51 0.4335 1.1335 94.3 63.3 21.5
2021 06 11 22 17 44.3 +23 20 49 0.4264 1.1243 93.4 64.4 21.5
...
2021 06 17 23 03 51.9 +27 52 53 0.3908 1.0691 87.0 71.6 21.4
...
2021 06 25 00 21 37.0 +32 43 38 0.3658 0.9951 76.2 82.8 21.5
...
2021 07 10 03 04 07.8 +32 46 34 0.4020 0.8603 56.2 101.0 22.2
A. U. Tomatic (C) Copyright 2021 MPC M.P.E.C. 2021-L116
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