Spahr

02975, 1957 HU, 1957HU, 1967 GH, 1967GH, 1970 AF1, 1970AF1, 1970 AK1, 1970AK1, 1970 CB, 1970CB, 1978 PF4, 1978PF4, J57H00U, J67G00H, J70A01F, J70A01K, J70C00B, J78P04F

All data for this body: [vot]

MPC data
Name (number) Spahr (2975)
a 2.24846
e 0.09491
i / sin(i) 6.9053 / 0.12023
q 2.03506
Q 2.46187
ω 317.8992
Node 236.4683
m 84.0636
n 0.2923
Epoch 2460800.5
nobs 6752
nopp 31
Years observed 1957-2025
rms 0.55
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.248
ep 0.143
sin(ip) 0.130
G 0.150
H 13.290
Mass
D 5.99 0.066
pV 0.407 0.0399
Value
Rotational Period 11.940
Period quality 3-
Spectral Class S
Spectral Class Score 30.218
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2483 0.1427 0.1301 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.92 0.110 0.110 Masiero 2014ApJ...791..121M NEATM
6.03 0.082 0.082 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.404 0.0445 0.0445 Masiero 2011ApJ...741...68M NEATM
0.420 0.0900 0.0900 Masiero 2014ApJ...791..121M 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
13.29 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
11.946 3- Synodic Behrend LCDB Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S 1.000 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
A Bus VIS Lazzaro 2004Icar..172..179L SPEC
A Tholen VIS Lazzaro 2004Icar..172..179L SPEC
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S 0.96 Bus VIS Carvano 2010A&A...510A..43C PHOT
S L 0.810000 0.180000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC
S S 0.7989 0.4950 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9201 0.4950 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9890 0.4950 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT