VOTable 1.4
  description: This file was generated by the Minor Planet Physical Properties Catalogue (MP3C) at https://mp3c.oca.eu/. MP3C curates data on asteroids and other minor bodies of the Solar System. It aggregates measurements from different sources of properties such as masses, diameters, albedos and orbital parameters.
INFO website_revision = 246eca2a
INFO database_version = 3.3.3-beta.1
INFO database_revision = 501f1c99
INFO database_date_created = 2025-10-03T11:07:33.397944+00:00
INFO date_file_created = 2026-01-13T12:18:54.665484+00:00
RESOURCE (results)
TABLE mpc
FIELD name |  | unicodeChar[*] |  |  | 
FIELD number |  | long |  |  |  | values: null=-9223372036854775808
FIELD a |  | double |  |  | 
FIELD e |  | double |  |  | 
FIELD i |  | double |  |  | 
FIELD sin_i |  | double |  |  | 
FIELD perihelion_distance |  | double |  |  | 
FIELD aphelion_distance |  | double |  |  | 
FIELD perihelion |  | double |  |  | 
FIELD node |  | double |  |  | 
FIELD m |  | double |  |  | 
FIELD n |  | double |  |  | 
FIELD epoch |  | double |  |  | 
FIELD n_obs |  | long |  |  |  | values: null=-9223372036854775808
FIELD n_opp |  | long |  |  |  | values: null=-9223372036854775808
FIELD multiopp_year_first_observed |  | int |  |  |  | values: null=-2147483648
FIELD multiopp_year_last_observed |  | int |  |  |  | values: null=-2147483648
FIELD singleopp_arc_length |  | double |  |  | 
FIELD rms |  | double |  |  | 
Helwerthia	801	2.605039	0.076708	14.14037	0.244299	2.4052117	2.8048663	337.41647	185.90068	75.41875	0.234414	2460800.5	6293	40	1915	2025	NaN	0.61
TABLE best
FIELD parent |  | int |  |  |  | values: null=-2147483648
FIELD parent_name |  | unicodeChar[*] |  |  | 
FIELD a_p |  | double |  |  | 
FIELD a_p_err |  | double |  |  | 
FIELD e_p |  | double |  |  | 
FIELD e_p_err |  | double |  |  | 
FIELD sin_i_p |  | double |  |  | 
FIELD sin_i_p_err |  | double |  |  | 
FIELD g |  | double |  |  | 
FIELD g_err |  | double |  |  | 
FIELD h |  | double |  |  | 
FIELD h_err |  | double |  |  | 
FIELD mass |  | double |  |  | 
FIELD mass_err |  | double |  |  | 
FIELD diameter |  | double |  |  | 
FIELD diameter_err |  | double |  |  | 
FIELD albedo |  | double |  |  | 
FIELD albedo_err |  | double |  |  | 
-2147483648		2.6053	NaN	0.1247	NaN	0.2449	NaN	0.15	NaN	11.57	NaN	NaN	NaN	33.462135	0.16785741	0.034280736	0.002504829
TABLE families
FIELD parent |  | int |  |  |  | values: null=-2147483648
FIELD parent_name |  | unicodeChar[*] |  |  | 
FIELD family_id |  | unicodeChar[*] |  |  | 
FIELD family_name |  | unicodeChar[*] |  |  | 
FIELD c_param |  | double |  |  | 
FIELD author |  | unicodeChar[*] |  |  | 
FIELD ref |  | unicodeChar[*] |  |  | 
FIELD method |  | unicodeChar[*] |  |  | 
801	Helwerthia	-1	Helwerthia	-1	Nesvorny	2024ApJS..274...25N	HCM-2024
TABLE proper-elements
FIELD a_p |  | double |  |  | 
FIELD e_p |  | double |  |  | 
FIELD sin_i_p |  | double |  |  | 
FIELD author |  | unicodeChar[*] |  |  | 
FIELD ref |  | unicodeChar[*] |  |  | 
FIELD method |  | unicodeChar[*] |  |  | 
2.6053	0.1247	0.2449	Novakovic_Radovic_Todovic	2003A&A...403.1165K	Numeric-Nov-2024
TABLE spectral
FIELD first_spec_class |  | unicodeChar[*] |  |  | 
FIELD second_spec_class |  | unicodeChar[*] |  |  | 
FIELD prob_first_spec_class |  | double |  |  | 
FIELD prob_second_spec_class |  | double |  |  | 
FIELD taxonomy |  | unicodeChar[*] |  |  | 
FIELD author |  | unicodeChar[*] |  |  | 
FIELD ref |  | unicodeChar[*] |  |  | 
FIELD method |  | unicodeChar[*] |  |  | 
X		1	NaN	Bus-Demeo	Sergeyev	2022A&A...658A.109S	PHOT
X	X	0.2335	0.554	Bus-Demeo	Sergeyev	2021A&A...652A..59S	PHOT
X	X	0.5079	0.554	Bus-Demeo	Sergeyev	2021A&A...652A..59S	PHOT
X	X	0.8798	0.554	Bus-Demeo	Sergeyev	2021A&A...652A..59S	PHOT
TABLE diameters
FIELD value |  | double |  |  | 
FIELD unc_up |  | double |  |  | 
FIELD unc_lo |  | double |  |  | 
FIELD author |  | unicodeChar[*] |  |  | 
FIELD ref |  | unicodeChar[*] |  |  | 
FIELD method |  | unicodeChar[*] |  |  | 
30.92	8.73	8.73	Masiero	2020PSJ.....1....5M	NEATM
31.2844	2.5395	2.5395	Ryan&Woodward	2010AJ....140..933R	IRAS-STM
31.717	11.002	11.002	Masiero	2017AJ....154..168M	NEATM
31.95	3.19	3.19	Ali-Lagoa	2018A&A...612A..85A	NEATM
31.99	13.59	13.59	Masiero	2021PSJ.....2..162M	NEATM
32.35	10.28	10.28	Masiero	2020PSJ.....1....5M	NEATM
32.4	0.68	0.68	Masiero	2012ApJ...759L...8M	NEATM
32.65	9.18	9.18	Masiero	2021PSJ.....2..162M	NEATM
33.23	2.5	2.5	Tedesco	2002AJ....123.1056T	STM
33.31	0.19	0.19	Nugent	2016AJ....152...63N	NEATM
33.537	13.008	13.008	Masiero	2017AJ....154..168M	NEATM
33.65	10.28	10.28	Masiero	2021PSJ.....2..162M	NEATM
34.23	11.26	11.26	Masiero	2020PSJ.....1....5M	NEATM
34.68	0.45	0.45	Usui	2011PASJ...63.1117U	NEATM
38.5542	2.6739	2.6739	Ryan&Woodward	2010AJ....140..933R	IRAS-NEATM
39.27	3.93	3.93	Ali-Lagoa	2018A&A...612A..85A	NEATM
TABLE albedos
FIELD value |  | double |  |  | 
FIELD unc_up |  | double |  |  | 
FIELD unc_lo |  | double |  |  | 
FIELD author |  | unicodeChar[*] |  |  | 
FIELD ref |  | unicodeChar[*] |  |  | 
FIELD method |  | unicodeChar[*] |  |  | 
0.028	0.012	0.021	Masiero	2021PSJ.....2..162M	NEATM
0.03	0.0042	0.0042	Ryan&Woodward	2010AJ....140..933R	IRAS-NEATM
0.03	0.006	0.006	Ali-Lagoa	2018A&A...612A..85A	NEATM
0.03	0.012	0.021	Masiero	2021PSJ.....2..162M	NEATM
0.03	0.015	0.031	Masiero	2021PSJ.....2..162M	NEATM
0.03	0.032	0.032	Masiero	2020PSJ.....1....5M	NEATM
0.031	0.012	0.012	Masiero	2012ApJ...759L...8M	NEATM
0.033	0.024	0.024	Masiero	2020PSJ.....1....5M	NEATM
0.034	0.029	0.029	Masiero	2020PSJ.....1....5M	NEATM
0.0384	0.007	0.007	Tedesco	2002AJ....123.1056T	STM
0.0413	0.0284	0.0284	Masiero	2017AJ....154..168M	NEATM
0.0427	0.0254	0.0254	Masiero	2017AJ....154..168M	NEATM
0.044	0.0072	0.0072	Ryan&Woodward	2010AJ....140..933R	IRAS-STM
0.046	0.009	0.009	Ali-Lagoa	2018A&A...612A..85A	NEATM
TABLE g
FIELD value |  | double |  |  | 
FIELD unc_up |  | double |  |  | 
FIELD unc_lo |  | double |  |  | 
FIELD author |  | unicodeChar[*] |  |  | 
FIELD ref |  | unicodeChar[*] |  |  | 
FIELD method |  | unicodeChar[*] |  |  | 
0.15	NaN	NaN	MPC-2023-12-94	MPC-2023-12-94	Phot
TABLE h
FIELD value |  | double |  |  | 
FIELD unc_up |  | double |  |  | 
FIELD unc_lo |  | double |  |  | 
FIELD author |  | unicodeChar[*] |  |  | 
FIELD ref |  | unicodeChar[*] |  |  | 
FIELD method |  | unicodeChar[*] |  |  | 
11.57	NaN	NaN	MPC-2023-12-04	MPC-2023-12-04	Phot
