Dancey

04021, 1950 SV, 1950SV, 1957 TE, 1957TE, 1957 UF, 1957UF, 1981 QD2, 1981QD2, 1986 AV, 1986AV, J50S00V, J57T00E, J57U00F, J81Q02D, J86A00V

All data for this body: [vot]

MPC data
Name (number) Dancey (4021)
a 2.28251
e 0.16975
i / sin(i) 3.5424 / 0.06179
q 1.89506
Q 2.66997
ω 326.8785
Node 49.5502
m 214.6695
n 0.2858
Epoch 2460800.5
nobs 3821
nopp 26
Years observed 1957-2025
rms 0.67
Best values
[raw, vot]

Value Standard error
Parent Nysa (44)
 
ap 2.282
ep 0.135
sin(ip) 0.049
G 0.150
H 13.670
Mass
D 4.54 0.033
pV 0.374 0.0688
Value
Rotational Period 4.108
Period quality 2
Spectral Class X
Spectral Class Score 2.406
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
44 Nysa 405 Nysa-Polana -2.9600 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2822 0.1345 0.0487 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.54 0.033 0.033 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.374 0.0688 0.0688 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
13.67 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
4.1085 2 Synodic Owings 2021MPBu...48..236O Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
Ds S None None Movis NIR Popescu 2018A&A...617A..12P PHOT
X 0.401 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT