Fay

04820, 1943 ER, 1943ER, 1951 RV, 1951RV, 1951 TP, 1951TP, 1975 RH1, 1975RH1, 1985 RZ, 1985RZ, J43E00R, J51R00V, J51T00P, J75R01H, J85R00Z

All data for this body: [vot]

MPC data
Name (number) Fay (4820)
a 2.85521
e 0.35329
i / sin(i) 12.4479 / 0.21555
q 1.84649
Q 3.86392
ω 96.4769
Node 331.5035
m 49.5204
n 0.2043
Epoch 2460800.5
nobs 6206
nopp 27
Years observed 1943-2025
rms 0.51
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.859
ep 0.311
sin(ip) 0.258
G 0.150
H 12.110
Mass
D 8.67 0.551
pV 0.439 0.0512
Value
Rotational Period 3.700
Period quality 3
Spectral Class S
Spectral Class Score 21.000
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.8588 0.3110 0.2578 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
8.60 0.570 0.570 Masiero 2012ApJ...759L...8M NEATM
9.64 2.150 2.150 Nugent 2016AJ....152...63N NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.300 0.1600 0.1600 Nugent 2016AJ....152...63N NEATM
0.455 0.0540 0.0540 Masiero 2012ApJ...759L...8M 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
12.11 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
3.7274 2 Sidereal Durech 2023A&A...675A..24D Model
3.727437 2 Sidereal Durech 2020A&A...643A..59D Model
3.73 3 Synodic Sergison 2010MPBu...37...33S Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S Bus VIS Lazzaro 2004Icar..172..179L SPEC
S Tholen VIS Lazzaro 2004Icar..172..179L SPEC
S 1.000 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S 1.000000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC