MPEC 2021-F04 : 2021 EQ4
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-F03
Read MPEC 2021-F05
M.P.E.C. 2021-F04 Issued 2021 March 16, 13:29 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
2021 EQ4
Observations:
K21E04Q* C2021 03 15.42164912 34 21.143+06 29 04.44 20.64wUEF004F51
K21E04Q C2021 03 15.43517812 34 16.829+06 27 26.71 20.31wUEF004F51
K21E04Q C2021 03 15.44874012 34 12.456+06 25 47.63 20.65wUEF004F51
K21E04Q C2021 03 15.46243212 34 08.022+06 24 07.60 20.59wUEF004F51
K21E04Q KC2021 03 15.84797012 32 24.11 +05 31 34.8 20.4 GVEF004L01
K21E04Q KC2021 03 15.85108712 32 23.05 +05 31 07.5 20.1 GVEF004L01
K21E04Q KC2021 03 15.85348512 32 22.25 +05 30 46.6 20.4 GVEF004L01
K21E04Q 2C2021 03 15.97308112 31 44.482+05 13 43.26 20.1 GVEF004J04
K21E04Q 2C2021 03 15.97424812 31 44.045+05 13 31.94 20.2 GVEF004J04
K21E04Q KC2021 03 15.99614 12 31 31.02 +05 09 26.6 20.2 GVEF004204
K21E04Q KC2021 03 16.01245 12 31 24.73 +05 06 54.5 VEF004204
K21E04Q KC2021 03 16.10368612 30 49.74 +04 52 32.6 20.2 GVEF004B37
K21E04Q KC2021 03 16.10964112 30 47.30 +04 51 32.9 20.0 GVEF004B37
K21E04Q KC2021 03 16.11561912 30 44.98 +04 50 34.5 20.0 GVEF004B37
K21E04Q KC2021 03 16.22069612 30 18.75 +04 33 14.2 20.2 VqEF004858
K21E04Q KC2021 03 16.22625112 30 16.44 +04 32 17.4 20.1 VqEF004858
K21E04Q KC2021 03 16.23180412 30 14.13 +04 31 20.4 20.0 VqEF004858
Observer details:
204 Schiaparelli Observatory. Observer L. Buzzi. 0.84-m f/3.5 reflector +
CCD.
858 Tebbutt Observatory, Edgewood. Observer F. B. Zoltowski. 0.51-m Schmidt-
Cassegrain + CCD.
B37 Obs. de L Ametlla del Valles, Barcelona. Observer A. Garrigos. 0.51-m
f/4.0 reflector + CCD.
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, T. Lowe, A. Schultz, M.
Willman. 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.
J04 ESA Optical Ground Station, Tenerife. Observer P. Ruiz. Measurers M.
Micheli, D. Koschny, L. Conversi, R. Kresken, A. Knofel, M. Busch, E.
Schwab. 1.0-m f/4.4 reflector + CCD.
L01 Visnjan Observatory, Tican. Observer K. Korlevic. 1.0-m f/2.9 reflector
+ CCD.
Orbital elements:
2021 EQ4 Earth MOID = 0.0106 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 270.71456 (2000.0) P Q
n 0.60897728 Peri. 279.99049 +0.12729187 +0.99179392
a 1.3784848 Node 357.23775 -0.78551495 +0.09347732
e 0.5746869 Incl. 14.29534 -0.60560964 +0.08721702
P 1.62 H 26.0 G 0.15 U 8
Residuals in seconds of arc
210315 F51 0.1+ 0.0 210315 L01 0.1+ 0.2- 210316 B37 0.3- 0.8-
210315 F51 0.0 0.1+ 210315 J04 0.2+ 0.7+ 210316 B37 0.8+ 0.5-
210315 F51 0.1- 0.2- 210315 J04 0.2+ 0.0 210316 858 0.1- 0.1-
210315 F51 0.0 0.1+ 210315 204 0.5- 0.1- 210316 858 0.1- 0.1+
210315 L01 0.1+ 0.4+ 210316 204 0.9- 0.2- 210316 858 0.0 0.3+
210315 L01 0.1- 0.0 210316 B37 0.5+ 0.5+
Ephemeris:
2021 EQ4 a,e,i = 1.38, 0.57, 14 q = 0.5863
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 02 14 12 40 57.1 +14 19 43 0.4138 1.3262 138.5 29.6 26.0
...
2021 03 01 12 47 10.3 +13 34 22 0.2234 1.1895 150.0 24.6 24.3
...
2021 03 09 12 45 44.9 +12 00 32 0.1286 1.1122 156.9 20.5 22.8
...
2021 03 15 12 35 58.1 +07 16 37 0.06007 1.0526 165.0 14.2 20.8
2021 03 16 12 31 29.0 +05 10 55 0.04892 1.0425 167.4 12.0 20.3
2021 03 17 12 24 23.1 +01 51 17 0.03793 1.0324 170.5 9.1 19.6
...
2021 03 23 01 39 37.2 -32 26 15 0.03330 0.9712 39.7 139.0 25.3
...
2021 03 31 01 05 53.3 -20 18 38 0.1234 0.8890 25.3 151.3 29.9
...
2021 04 15 00 59 01.5 -15 29 49 0.3086 0.7400 26.5 142.8 30.0
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-F04
Read MPEC 2021-F03
Read MPEC 2021-F05
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)