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19696 (1999 SW1)
Classification: Main-belt Asteroid          SPK-ID: 2019696
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .124641493705932 2.5477e-08  
a 3.192188579026963 2.2712e-08 au
q 2.794309426346026 8.4111e-08 au
i 16.63799559199417 2.1238e-06 deg
node 255.6147659253267 3.0027e-06 deg
peri 152.4837745838425 9.953e-06 deg
M 216.2635228566961 1.1508e-05 deg
tp 2460032.255596552873
(2023-Mar-28.75559655)
7.0365e-05 TDB
period 2083.20129107174
5.70
2.2233e-05
6.087e-08
d
yr
n .1728109528075377 1.8443e-09 deg/d
Q 3.5900677317079 2.5543e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1334  
   data-arc span      24006 days (65.72 yr)  
   first obs. used      1954-11-23  
   last obs. used      2020-08-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47085  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:03:00  

Additional Information
 Earth MOID = 1.8155 au 
 Jupiter MOID = 1.77999 au 
 T_jup = 3.119 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.86   n/a E2021B10  
diameter diameter 13.769 km 0.170 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.73406 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.071   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19696 (1999 SW1)          Discovered 1999-Sep-18 by LINEAR at Socorro
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1900-Aug-29 07:10 00:03 Jupiter 1.82965162977618 1.82965113740577 1.82965212217997 4.95255872006023 4.85818422418961 2415260.798539245 3.40771427133477 450.783458770821 11.4914176233708 87.1805130368156 8529965.52909324 T 21 CATAB v2.0f-lin.ifort 2021-Apr-13 03:03:31 2021-Apr-13 03:03
1911-Nov-24 05:46 00:03 Jupiter 1.93042832502416 1.9304269001569 1.93042974991906 4.74905054876008 4.65574186723084 2419364.740483361 3.04499453811631 380.675593249772 11.9446785310896 79.0744973928992 7881438.19392717 T 21 CATAB v2.0f-lin.ifort 2021-Apr-13 03:03:31 2021-Apr-13 03:03
2055-Aug-08 00:36 00:01 Jupiter 1.86827157511871 1.86827115200603 1.86827199823267 4.84686908169896 4.75240942785495 2471852.524768338 1.25023643970701 121.514103426566 16.2037581929175 -83.3486559856734 8754486.7226908 T 21 CATAB v2.0f-lin.ifort 2021-Apr-13 03:03:31 2021-Apr-13 03:03
2066-Oct-27 00:43 00:02 Jupiter 1.8166246573485 1.81662435671708 1.81662495798354 4.93748529849887 4.84213152049147 2475950.529987311 1.59620976563121 210.234451273124 11.4303607278645 87.4426802212104 8406696.07009008 T 21 CATAB v2.0f-lin.ifort 2021-Apr-13 03:03:31 2021-Apr-13 03:03
2078-Jan-23 01:08 00:02 Jupiter 1.90356800914593 1.90356702892476 1.90356898938128 4.83620334048439 4.74330383899995 2480056.547205230 2.09942343182052 273.099296871331 11.0873891236879 79.7429652740578 8087872.93383675 T 21 CATAB v2.0f-lin.ifort 2021-Apr-13 03:03:31 2021-Apr-13 03:03

Alternate Designations
 1999 SW1 = 1977 XM = 1994 WW3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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