Elford

04974, 1952 HZ, 1952HZ, 1987 SN10, 1987SN10, 1990 LA, 1990LA, J52H00Z, J87S10N, J90L00A

All data for this body: [vot]

MPC data
Name (number) Elford (4974)
a 2.60453
e 0.10945
i / sin(i) 13.8062 / 0.23864
q 2.31946
Q 2.88961
ω 24.0293
Node 175.9739
m 144.6854
n 0.2345
Epoch 2460800.5
nobs 3963
nopp 29
Years observed 1952-2025
rms 0.66
Best values
[raw, vot]

Value Standard error
Parent Eunomia (15)
 
ap 2.605
ep 0.157
sin(ip) 0.233
G 0.150
H 12.880
Mass
D 8.22 0.062
pV 0.233 0.0349
Value
Rotational Period 6.563
Period quality 3
Spectral Class S
Spectral Class Score 19.323
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
15 Eunomia 0 Eunomia Novakovic 2019EPSC...13.1671N HCM
15 Eunomia 502 Eunomia -0.6000 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6047 0.1566 0.2334 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
7.32 1.490 1.490 Nugent 2016AJ....152...63N NEATM
8.22 0.062 0.062 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.200 0.1000 0.1000 Nugent 2016AJ....152...63N NEATM
0.238 0.0372 0.0372 Masiero 2011ApJ...741...68M 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
12.88 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
6.56 2+ Synodic Warell 2017MPBu...44..304W Lightcurve
6.563 3 Synodic Behrend LCDB Lightcurve
6.5635 3 Synodic Behrend LCDB Lightcurve
6.565 2 Sidereal Durech 2023A&A...675A..24D Model
6.56506 2 Sidereal Durech 2018A&A...617A..57D Model
6.566 2 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
L 0.89 Bus VIS Carvano 2010A&A...510A..43C PHOT
L S 0.4054 0.6500 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S S 0.5260 0.6500 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.6666 0.6500 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.7860 0.6500 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9085 0.6500 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT