Heidi

02521, 1951 EJ2, 1951EJ2, 1960 CC, 1960CC, 1971 OV1, 1971OV1, 1979 DK, 1979DK, J51E02J, J60C00C, J71O01V, J79D00K

All data for this body: [vot]

MPC data
Name (number) Heidi (2521)
a 2.79466
e 0.08941
i / sin(i) 7.7345 / 0.13458
q 2.54479
Q 3.04452
ω 246.8002
Node 281.0684
m 318.7849
n 0.2110
Epoch 2460800.5
nobs 6052
nopp 31
Years observed 1951-2025
rms 0.58
Best values
[raw, vot]

Value Standard error
Parent Gefion (1272)
 
ap 2.794
ep 0.126
sin(ip) 0.156
G 0.150
H 11.870
Mass
D 14.41 0.851
pV 0.191 0.0544
Value
Rotational Period 12.000
Period quality 1
Spectral Class S
Spectral Class Score 31.040
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
1272 Gefion 0 Gefion Novakovic 2019EPSC...13.1671N HCM
1272 Gefion 516 Gefion 0.6100 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7938 0.1263 0.1561 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
14.33 0.930 0.930 Usui 2011PASJ...63.1117U NEATM
14.33 2.870 2.870 Ali-Lagoa 2018A&A...612A..85A NEATM
15.44 3.090 3.090 Ali-Lagoa 2018A&A...612A..85A NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.179 0.0720 0.0720 Ali-Lagoa 2018A&A...612A..85A NEATM
0.208 0.0830 0.0830 Ali-Lagoa 2018A&A...612A..85A 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
11.87 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
12.0 1 Synodic Behrend LCDB Lightcurve
41.566 2 Sidereal Durech 2023A&A...675A..24D Model
41.5665 2 Sidereal Durech 2019A&A...631A...2D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S Bus-DeMeo VISNIR DeMeo 2009Icar..202..160D SPEC
S Bus VIS Bus 2002Icar..158..146B SPEC
S Q 0.720000 0.280000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC