Hildebrand

05661, 1977 PO1, 1977PO1, 1986 XN3, 1986XN3, 1990 EW, 1990EW, J77P01O, J86X03N, J90E00W

All data for this body: [vot]

MPC data
Name (number) Hildebrand (5661)
a 3.95723
e 0.23452
i / sin(i) 13.3186 / 0.23036
q 3.02919
Q 4.88526
ω 2.0513
Node 317.0354
m 34.9585
n 0.1252
Epoch 2460800.5
nobs 3961
nopp 31
Years observed 1977-2025
rms 0.67
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.967
ep 0.198
sin(ip) 0.251
G 0.150
H 11.090
Mass
D 40.99 1.122
pV 0.056 0.0095
Value
Rotational Period 6.800
Period quality 2+
Spectral Class D
Spectral Class Score 24.720
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.9667 0.1976 0.2513 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
34.37 2.900 2.900 Tedesco 2002AJ....123.1056T STM
35.82 7.160 7.160 Ali-Lagoa 2018A&A...612A..85A NEATM
42.29 1.260 1.260 Usui 2011PASJ...63.1117U NEATM
43.00 8.600 8.600 Ali-Lagoa 2018A&A...612A..85A NEATM
44.33 8.870 8.870 Ali-Lagoa 2018A&A...612A..85A NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.039 0.0160 0.0160 Ali-Lagoa 2018A&A...612A..85A NEATM
0.041 0.0160 0.0160 Ali-Lagoa 2018A&A...612A..85A NEATM
0.060 0.0240 0.0240 Ali-Lagoa 2018A&A...612A..85A NEATM
0.136 0.0260 0.0260 Tedesco 2002AJ....123.1056T 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
11.09 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
13.61 2 Synodic Dahlgren 1998Icar..133..247D Lightcurve
4.85 1 Synodic Behrend LCDB Lightcurve
6.803 2+ Synodic Warner 2018MPBu...45..147W Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
D Bus-DeMeo NIR De Pra 2018Icar..311...35D SPEC
D 0.960000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC