Fireman

04231, 1976 WD, 1976WD, 1976 YV3, 1976YV3, 1977 AT, 1977AT, 1979 SP10, 1979SP10, 1986 XK1, 1986XK1, J76W00D, J76Y03V, J77A00T, J79S10P, J86X01K

All data for this body: [vot]

MPC data
Name (number) Fireman (4231)
a 2.25934
e 0.06664
i / sin(i) 8.5958 / 0.14946
q 2.10878
Q 2.40989
ω 76.9687
Node 261.0018
m 192.4679
n 0.2902
Epoch 2460800.5
nobs 4437
nopp 26
Years observed 1976-2025
rms 0.67
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.260
ep 0.016
sin(ip) 0.159
G 0.150
H 13.400
Mass
D 17.96 0.557
pV 0.022 0.0014
Value
Rotational Period 339.500
Period quality 2
Spectral Class Ch
Spectral Class Score 18.000
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2598 0.0157 0.1591 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
13.06 3.237 3.237 Ryan&Woodward 2010AJ....140..933R IRAS-STM
13.28 1.400 1.400 Tedesco 2002AJ....123.1056T STM
19.05 0.618 0.618 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.021 0.0014 0.0014 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
0.044 0.0110 0.0110 Tedesco 2002AJ....123.1056T STM
0.045 0.0174 0.0174 Ryan&Woodward 2010AJ....140..933R IRAS-STM
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
13.40 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
28.0 1+ Synodic Behrend LCDB Lightcurve
339.53 2 Sidereal Durech 2019A&A...631A...2D Model
339.57 2 Sidereal Athanasopoulos 2022A&A...666A.116A Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
Ch Bus-DeMeo NIR Arredondo 2021Icar..36814619A SPEC
S 0.774 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT