Demophon

04057, 1985 TQ, 1985TQ, J85T00Q

All data for this body: [vot]

MPC data
Name (number) Demophon (4057)
a 5.23597
e 0.11870
i / sin(i) 2.8731 / 0.05012
q 4.61447
Q 5.85747
ω 61.0480
Node 24.2527
m 49.0732
n 0.0823
Epoch 2460800.5
nobs 5331
nopp 32
Years observed 1985-2025
rms 0.60
Best values
[raw, vot]

Value Standard error
Parent
 
ap
ep
sin(ip)
G 0.150
H 10.270
Mass
D 45.68 6.580
pV 0.077 0.0150
Value
Rotational Period 29.800
Period quality 3-
Spectral Class X
Spectral Class Score 8.590
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
45.68 6.580 6.580 Grav 2012ApJ...759...49G NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.077 0.0150 0.0150 Grav 2012ApJ...759...49G 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
10.27 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
29.31 2 Synodic Mottola 2011AJ....141..170M Lightcurve
29.82 3- Synodic Ryan 2017AJ....153..116R Lightcurve
29.925 2+ Synodic Szabo 2017A&A...599A..44S Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
X 0.654 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
X X 0.7777 0.7777 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT