Semphyra

01014, 1924 BM, 1924BM, 1932 WH, 1932WH, 1984 YP6, 1984YP6, J24B00M, J32W00H, J84Y06P

All data for this body: [vot]

MPC data
Name (number) Semphyra (1014)
a 2.79917
e 0.20435
i / sin(i) 2.2654 / 0.03953
q 2.22717
Q 3.37117
ω 234.6021
Node 251.4617
m 199.4557
n 0.2105
Epoch 2460800.5
nobs 4674
nopp 43
Years observed 1924-2025
rms 0.68
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.803
ep 0.224
sin(ip) 0.060
G 0.150
H 11.960
Mass
D 17.46 0.239
pV 0.087 0.0116
Value
Rotational Period 5.630
Period quality 3
Spectral Class M
Spectral Class Score 10.620
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.8032 0.2243 0.0596 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
16.63 4.880 4.880 Masiero 2020PSJ.....1....5M NEATM
17.17 0.880 0.880 Usui 2011PASJ...63.1117U NEATM
17.48 3.500 3.500 Ali-Lagoa 2018A&A...612A..85A NEATM
17.49 0.250 0.250 Masiero 2011ApJ...741...68M NEATM
17.84 3.570 3.570 Ali-Lagoa 2018A&A...612A..85A NEATM
17.96 5.220 5.220 Masiero 2020PSJ.....1....5M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.084 0.0130 0.0130 Masiero 2011ApJ...741...68M NEATM
0.086 0.0670 0.0670 Masiero 2020PSJ.....1....5M NEATM
0.096 0.0640 0.0640 Masiero 2020PSJ.....1....5M NEATM
0.105 0.0420 0.0420 Ali-Lagoa 2018A&A...612A..85A NEATM
0.109 0.0440 0.0440 Ali-Lagoa 2018A&A...612A..85A 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
11.96 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
5.636 3 Synodic Pray 2005MPBu...32....8P Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
Cgx Kl None None Movis NIR Popescu 2018A&A...617A..12P PHOT
M Tholen NIR Clark 2004AJ....128.3070C SPEC
M S 0.660000 0.230000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC
X 0.989 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
Xe Bus VIS Bus 2002Icar..158..146B SPEC