Johnwood

04736, 1983 AF2, 1983AF2, 1987 SG7, 1987SG7, J83A02F, J87S07G

All data for this body: [vot]

MPC data
Name (number) Johnwood (4736)
a 1.95788
e 0.13925
i / sin(i) 21.9657 / 0.37405
q 1.68524
Q 2.23052
ω 106.5817
Node 310.3829
m 217.5583
n 0.3598
Epoch 2460800.5
nobs 3521
nopp 22
Years observed 1983-2025
rms 0.61
Best values
[raw, vot]

Value Standard error
Parent
 
ap 1.958
ep 0.110
sin(ip) 0.427
G 0.150
H 13.690
Mass
D 2.72 0.051
pV 0.986 0.0593
Value
Rotational Period 6.200
Period quality 3
Spectral Class Xe
Spectral Class Score 18.000
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
1.9577 0.1100 0.4268 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.71 0.053 0.053 Masiero 2011ApJ...741...68M NEATM
2.84 0.180 0.180 Masiero 2014ApJ...791..121M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.960 0.1000 0.1000 Masiero 2014ApJ...791..121M NEATM
1.000 0.0737 0.0737 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
13.69 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
6.21 3 Synodic Warner 2005MPBu...32...54W Lightcurve
6.21572 2 Sidereal Durech 2020A&A...643A..59D Model
6.21576 2 Sidereal Wang 2021AN....342..914W Model
6.217 3 Synodic Warner 2010MPBu...37...57W Lightcurve
6.217 3 Synodic Warner 2013MPBu...40..137W Lightcurve
6.26 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
C 0.120 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
C K 0.1816 0.3890 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
D K 0.2920 0.3890 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
D K 0.3342 0.3890 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
E S 0.860000 0.140000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC
K K 0.5101 0.3890 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
Xe Xc Bus-DeMeo NIR Lucas 2017Icar..291..268L SPEC