Hipparchus

04000, 1963 XA, 1963XA, 1975 TW4, 1975TW4, 1977 FZ2, 1977FZ2, 1978 NG8, 1978NG8, 1979 WU4, 1979WU4, 1984 YX5, 1984YX5, 1987 SD18, 1987SD18, 1989 AV, 1989AV, J63X00A, J75T04W, J77F02Z, J78N08G, J79W04U, J84Y05X, J87S18D, J89A00V

All data for this body: [vot]

MPC data
Name (number) Hipparchus (4000)
a 2.58786
e 0.11616
i / sin(i) 2.7207 / 0.04747
q 2.28726
Q 2.88845
ω 174.0037
Node 318.4099
m 238.3912
n 0.2368
Epoch 2460800.5
nobs 5632
nopp 33
Years observed 1954-2025
rms 0.59
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.589
ep 0.116
sin(ip) 0.062
G 0.150
H 12.990
Mass
D 17.56 0.029
pV 0.040 0.0028
Value
Rotational Period 3.410
Period quality 2
Spectral Class X
Spectral Class Score 4.250
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5892 0.1158 0.0623 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
14.75 3.950 3.950 Masiero 2020PSJ.....1....5M NEATM
14.77 3.360 3.360 Masiero 2021PSJ.....2..162M NEATM
15.13 4.810 4.810 Nugent 2016AJ....152...63N NEATM
15.83 4.060 4.060 Masiero 2021PSJ.....2..162M NEATM
16.05 4.750 4.750 Masiero 2020PSJ.....1....5M NEATM
16.17 5.220 5.220 Nugent 2016AJ....152...63N NEATM
17.49 0.030 0.030 Masiero 2014ApJ...791..121M NEATM
18.22 0.094 0.094 Masiero 2011ApJ...741...68M NEATM
18.87 0.590 0.590 Usui 2011PASJ...63.1117U NEATM
18.95 3.790 3.790 Ali-Lagoa 2018A&A...612A..85A NEATM
19.38 3.880 3.880 Ali-Lagoa 2018A&A...612A..85A NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.035 0.0240 0.0240 Masiero 2020PSJ.....1....5M NEATM
0.036 0.0140 0.0140 Ali-Lagoa 2018A&A...612A..85A NEATM
0.038 0.0150 0.0150 Ali-Lagoa 2018A&A...612A..85A NEATM
0.039 0.0031 0.0031 Masiero 2011ApJ...741...68M NEATM
0.039 0.0140 0.0230 Masiero 2021PSJ.....2..162M NEATM
0.048 0.0170 0.0260 Masiero 2021PSJ.....2..162M NEATM
0.050 0.0100 0.0100 Masiero 2014ApJ...791..121M NEATM
0.050 0.0400 0.0400 Nugent 2016AJ....152...63N NEATM
0.050 0.0500 0.0500 Nugent 2016AJ....152...63N NEATM
0.055 0.0760 0.0760 Masiero 2020PSJ.....1....5M NEATM
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
12.99 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
3.418 2 Synodic Odden 2014MPBu...41..274O Lightcurve
7.935 1 Synodic Waszczak 2015AJ....150...75W Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
B 0.687 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
X X 0.7083 0.7083 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT