Dewar

09420, 1978 YD1, 1978YD1, 1993 AU, 1993AU, 1995 XP4, 1995XP4, J78Y01D, J93A00U, J95X04P

All data for this body: [vot]

MPC data
Name (number) Dewar (9420)
a 2.27024
e 0.08983
i / sin(i) 4.7826 / 0.08338
q 2.06631
Q 2.47416
ω 335.8465
Node 197.4747
m 119.2132
n 0.2881
Epoch 2460800.5
nobs 3957
nopp 25
Years observed 1978-2025
rms 0.70
Best values
[raw, vot]

Value Standard error
Parent Baptistina (298)
 
ap 2.270
ep 0.139
sin(ip) 0.092
G 0.150
H 14.420
Mass
D 3.24 0.118
pV 0.292 0.0539
Value
Rotational Period 52.450
Period quality 2
Spectral Class S
Spectral Class Score 4.573
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
8 Flora 402 Flora 0.5200 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
298 Baptistina 403 Baptistina 0.3700 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2701 0.1389 0.0916 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.24 0.118 0.118 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.292 0.0539 0.0539 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
14.42 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
52.454 2 Sidereal Durech 2023A&A...675A..24D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
A 0.158 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S S 0.7621 0.7621 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT