Imperatrix

01200, 1913 EC, 1913EC, 1915 TL, 1915TL, 1924 GC, 1924GC, 1929 CX, 1929CX, 1931 RH, 1931RH, 1950 DC1, 1950DC1, 1957 OY, 1957OY, J13E00C, J15T00L, J24G00C, J29C00X, J31R00H, J50D01C, J57O00Y

All data for this body: [vot]

MPC data
Name (number) Imperatrix (1200)
a 3.06412
e 0.11043
i / sin(i) 4.6153 / 0.08046
q 2.72573
Q 3.40250
ω 52.8546
Node 204.6142
m 157.3995
n 0.1838
Epoch 2460200.5
nobs 4845
nopp 48
Years observed 1915-2023
rms 0.50
Best values
[raw, vot]

Value Standard error
Parent Hygiea (10)
 
ap 3.060
ep 0.132
sin(ip) 0.088
Value Standard error
G 0.150
H 10.970
Mass
D 41.03 0.195
pV 0.064 0.0034
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
10 Hygiea 601 Hygiea Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.0600 0.1320 0.0881 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Oct-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
33.85 1.424 1.424 Ryan&Woodward 2010AJ....140..933R IRAS-STM
36.00 0.420 0.420 Masiero 2012ApJ...759L...8M NEATM
37.36 9.710 9.710 Nugent 2016AJ....152...63N NEATM
38.25 11.850 11.850 Masiero 2021PSJ.....2..162M NEATM
39.52 3.900 3.900 Tedesco 2002AJ....123.1056T STM
39.56 12.700 12.700 Nugent 2016AJ....152...63N NEATM
40.75 14.669 14.669 Masiero 2017AJ....154..168M NEATM
41.43 4.140 4.140 Ali-Lagoa 2018A&A...612A..85A NEATM
41.48 4.150 4.150 Ali-Lagoa 2018A&A...612A..85A NEATM
41.92 16.257 16.257 Masiero 2017AJ....154..168M NEATM
42.01 0.390 0.390 Masiero 2014ApJ...791..121M NEATM
42.78 0.309 0.309 Masiero 2011ApJ...741...68M NEATM
43.64 0.610 0.610 Usui 2011PASJ...63.1117U NEATM
44.29 3.065 3.065 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.035 0.0283 0.0283 Masiero 2017AJ....154..168M NEATM
0.035 0.0170 0.0340 Masiero 2021PSJ.....2..162M NEATM
0.037 0.0228 0.0228 Masiero 2017AJ....154..168M NEATM
0.040 0.0400 0.0400 Nugent 2016AJ....152...63N NEATM
0.040 0.0400 0.0400 Nugent 2016AJ....152...63N NEATM
0.051 0.0100 0.0100 Ali-Lagoa 2018A&A...612A..85A NEATM
0.051 0.0100 0.0100 Ali-Lagoa 2018A&A...612A..85A NEATM
0.060 0.0100 0.0100 Masiero 2014ApJ...791..121M NEATM
0.061 0.0118 0.0118 Masiero 2011ApJ...741...68M NEATM
0.061 0.0079 0.0079 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
0.065 0.0090 0.0090 Masiero 2012ApJ...759L...8M NEATM
0.071 0.0170 0.0170 Tedesco 2002AJ....123.1056T STM
0.099 0.0086 0.0086 Ryan&Woodward 2010AJ....140..933R IRAS-STM
G data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.15 MPC-2023-12-94 MPC-2023-12-94 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
10.97 MPC-2023-12-04 MPC-2023-12-04 Phot