MPEC 2021-M103 : 2021 MR1
The following Minor Planet Electronic Circular may be linked-to from your own Web pages, but must not otherwise be redistributed electronically.A form allowing access to any MPEC is at the bottom of this page.
Read MPEC 2021-M102
Read MPEC 2021-M104
M.P.E.C. 2021-M103 Issued 2021 June 29, 05:53 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
2021 MR1
Observations:
K21M01R C2021 06 13.32869 17 12 43.38 -07 12 34.1 20.9 GVEM103G96
K21M01R C2021 06 13.33401 17 12 42.09 -07 12 24.9 20.9 GVEM103G96
K21M01R* C2021 06 27.26827016 04 18.836+00 37 57.93 20.66wUEM103F51
K21M01R C2021 06 27.27933216 04 14.877+00 38 23.86 20.72wUEM103F51
K21M01R C2021 06 27.29040216 04 10.914+00 38 49.70 20.68wUEM103F51
K21M01R C2021 06 27.30150216 04 06.932+00 39 15.72 20.63wUEM103F51
K21M01R C2021 06 27.39538816 03 33.253+00 42 55.15 20.45GVEM103F51
K21M01R C2021 06 27.39603616 03 33.014+00 42 56.72 21.21GVEM103F51
K21M01R bC2021 06 27.91061516 00 31.28 +01 02 57.6 20.8 GVEM103L01
K21M01R bC2021 06 27.91234816 00 30.68 +01 03 02.1 20.8 GVEM103L01
K21M01R bC2021 06 27.91408216 00 30.00 +01 03 06.4 20.7 GVEM103L01
K21M01R bC2021 06 27.91624916 00 29.19 +01 03 11.4 20.7 GVEM103L01
K21M01R bC2021 06 27.91820016 00 28.53 +01 03 16.4 20.8 GVEM103L01
K21M01R bC2021 06 27.92058416 00 27.67 +01 03 22.1 20.8 GVEM103L01
K21M01R KC2021 06 27.96921316 00 11.14 +01 05 37.5 20.2 GXEM103Y00
K21M01R KC2021 06 27.97776016 00 08.05 +01 05 58.0 20.3 GXEM103Y00
K21M01R KC2021 06 27.98641216 00 04.90 +01 06 18.6 20.1 GXEM103Y00
K21M01R KC2021 06 28.19908 15 58 48.91 +01 14 23.0 20.5 GVEM103291
K21M01R KC2021 06 28.20056 15 58 48.38 +01 14 26.2 20.6 GVEM103291
K21M01R KC2021 06 28.20203 15 58 47.82 +01 14 29.9 20.9 GVEM103291
K21M01R KC2021 06 28.29103615 58 15.41 +01 18 00.6 21.28GVEM103I52
K21M01R KC2021 06 28.85500615 54 53.29 +01 40 14.2 20.8 GVEM103595
K21M01R KC2021 06 28.87584215 54 45.69 +01 41 04.2 20.5 GVEM103595
K21M01R KC2021 06 29.15818915 53 03.35 +01 52 18.6 20.8 VuEM103H21
K21M01R KC2021 06 29.16238515 53 01.81 +01 52 28.6 20.7 VuEM103H21
K21M01R KC2021 06 29.16508915 53 00.79 +01 52 35.6 20.9 VuEM103H21
Observer details:
291 LPL/Spacewatch II. Observer T. H. Bressi. 1.8-m f/2.7 reflector + CCD.
595 Farra d'Isonzo. Observers N. Moretta, E. Pettarin. Measurer E.
Pettarin. 0.61-m f/4.5 reflector + CCD.
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, T. Lowe, A. Schultz, M.
Willman, K. Chambers, I. Smith. Measurers K. Chambers, S. Chastel, T. de
Boer, L. Denneau, J. Fairlamb, H. Flewelling, M. Huber, C.-C. Lin, E.
Magnier, Y. Ramanjooloo, R. Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien +
CCD.
G96 Mt. Lemmon Survey. Observer D. Rankin. Measurers B. Gray, D. Rankin, F.
C. Shelly. 1.5-m reflector + 10K CCD.
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers T. Linder, R. Holmes, L. Horn. 0.76-m f/3.0 astrograph + CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observer K. W. Wierzchos.
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.
L01 Visnjan Observatory, Tican. Observers K. Korlevic, I. Lyon. Measurer K.
Korlevic. 1.0-m f/2.9 reflector + CCD.
Y00 SONEAR Observatory, Oliveira. Observers C. Jacques, E. Pimentel, J.
Barros. Measurer C. Jacques. 0.45-m f/2.9 reflector + CCD.
Orbital elements:
2021 MR1 Earth MOID = 0.1616 AU
Epoch 2021 July 5.0 TT = JDT 2459400.5 Bell
M 340.60143 (2000.0) P Q
n 0.33756425 Peri. 165.28871 +0.72005087 -0.66035043
a 2.0428278 Node 238.07890 +0.60858797 +0.74857929
e 0.8703087 Incl. 14.54925 +0.33338780 +0.05971890
P 2.92 H 20.63 G 0.15 U 8
Residuals in seconds of arc
210613 G96 0.1+ 0.2- 210627 L01 0.3+ 0.5- 210628 291 0.2+ 0.2-
210613 G96 0.1- 0.2+ 210627 L01 0.5- 0.3- 210628 291 0.1- 0.1+
210627 F51 0.1- 0.0 210627 L01 0.9- 0.4- 210628 I52 0.0 0.4+
210627 F51 0.1- 0.1+ 210627 L01 0.2- 0.0 210628 595 0.0 0.4-
210627 F51 0.0 0.0 210627 L01 0.3- 0.1+ 210628 595 0.8+ 0.0
210627 F51 0.1- 0.1+ 210627 Y00 0.2- 0.0 210629 H21 0.2- 0.1-
210627 F51 0.3+ 0.2- 210627 Y00 0.1- 0.3+ 210629 H21 0.1- 0.1-
210627 F51 0.2+ 0.1- 210627 Y00 0.2- 0.5+ 210629 H21 0.5- 0.5+
210627 L01 0.1- 1.0- 210628 291 0.1+ 0.1+
Ephemeris:
2021 MR1 a,e,i = 2.04, 0.87, 15 q = 0.2649
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 05 30 17 54 44.6 -12 25 36 0.7790 1.7577 157.1 12.9 22.1
...
2021 06 14 17 10 04.7 -06 53 40 0.5696 1.5693 163.0 10.9 21.1
...
2021 06 22 16 33 23.1 -02 38 33 0.4898 1.4614 150.1 20.3 20.9
...
2021 06 28 16 00 00.1 +01 06 41 0.4473 1.3767 136.7 30.4 20.9
2021 06 29 15 54 01.1 +01 46 12 0.4417 1.3622 134.3 32.3 20.9
2021 06 30 15 47 56.1 +02 26 04 0.4365 1.3476 131.8 34.2 20.9
...
2021 07 06 15 09 48.4 +06 27 13 0.4144 1.2580 116.6 46.3 21.0
...
2021 07 14 14 17 13.2 +11 27 53 0.4060 1.1322 95.8 63.3 21.2
...
2021 07 29 12 42 04.0 +18 26 44 0.4353 0.8727 58.7 96.0 22.0
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-M103
Read MPEC 2021-M102
Read MPEC 2021-M104
Enter an MPEC number in one of the following forms:
- 1997-B01 (the full form)
- J97B01 (the packed version of the full form)
- B01 (the abbreviated form)