Eric

04954, 1990 SQ, 1990SQ, J90S00Q

All data for this body: [vot]

MPC data
Name (number) Eric (4954)
a 2.00135
e 0.44944
i / sin(i) 17.4281 / 0.29951
q 1.10186
Q 2.90084
ω 52.6200
Node 358.3976
m 57.5464
n 0.3481
Epoch 2460800.5
nobs 6699
nopp 26
Years observed 1975-2025
rms 0.57
Best values
[raw, vot]

Value Standard error
Parent
 
ap 1.969
ep 0.375
sin(ip) 0.303
G 0.150
H 12.560
Mass
D 9.49 0.243
pV 0.180 0.1575
Value
Rotational Period 12.050
Period quality 3
Spectral Class S
Spectral Class Score 70.502
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
1.9693 0.3746 0.3032 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
8.29 3.202 3.202 Mainzer 2012ApJ...760L..12M NEATM
9.49 0.244 0.244 Mainzer 2014ApJ...792...30M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.023 0.5000 0.5000 Mainzer 2014ApJ...792...30M NEATM
0.197 0.1660 0.1660 Mainzer 2012ApJ...760L..12M 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
12.56 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
11.0 2 Synodic Wisniewski 1997Icar..126..395W Lightcurve
12.05207 2 Sidereal Hanus 2013A&A...551A..67H Model
12.054 3- Synodic Behrend LCDB Lightcurve
12.0549 3 Synodic Behrend LCDB Lightcurve
12.0558 2 Sidereal Durech 2023A&A...675A..24D Model
12.05581 2 Sidereal Warner 2011MPBu...38...25W Model
12.056 3 Synodic Pravec 1995EM&P...71..177P Lightcurve
12.057 2 Synodic Zeigler 1998MPBu...25...13Z Lightcurve
12.058 3- Synodic Warner 2014MPBu...41..157W Lightcurve
12.065 Synodic Krugly LCDB Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
A Bus VIS Lin 2018P&SS..152..116L PHOT
S Bus VIS Angeli 2002A&A...391..757A SPEC
S Bus VIS Bus 2002Icar..158..146B SPEC
S Bus VISNIR Binzel 2004Icar..170..259B SPEC
S Tholen VIS Fevik 2007Icar..188..175F SPEC
S Tholen VIS Lazzaro 2004Icar..172..179L SPEC
S Tholen VIS Michelsen 2006A&A...451..331M SPEC
S Tholen VIS Lazzarin 1997A&A...327..388L SPEC+PHOT
S 0.452 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S 0.970000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC
S 1.000000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC
S 1.000000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC
S 1.000000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC
SI Bus VIS Lazzaro 2004Icar..172..179L SPEC
Sr Bus-DeMeo VISNIR Gietzen 2012M&PS...47.1789G SPEC
Sr Bus-DeMeo VISNIR Sanchez 2012Icar..220...36S SPEC
Srw Bus-DeMeo VISNIR Binzel 2019Icar..324...41B SPEC
Sw Bus-DeMeo VISNIR Sanchez 2012Icar..220...36S SPEC