Michigan Astronomy

Observatories & ComputingRadio Astronomy Observatory

UMRAO Database Interface

UMRAO Database Interface


For background information, see the discussion of the U of M Radio Astronomy Observatory. The description and plots given below were last updated on November 13, 2009. (Click for revision history.)

The UMRAO total flux density data are currently being edited and prepared for publication in a compendium paper which will be submitted to ApJ Supplement.The linear polarization data will be included in a separate publication. Currently, longterm light curves showing two-week averages of the total flux density for selected sources can be viewed using the links in the table below. We will soon be adding tabular data providing daily averages of both total flux density and linear polarization for a set of gamma-ray-bright sources which are being intensively monitored in a new program which commenced in September 2009 funded by the Fermi guest investigator program. Be aware that the UMRAO data may still contain an occasional bad measurement. No light curves, or analysis of these data, may be included in papers submitted for publication without the consent and knowledge of Hugh or Margo Aller. The data shown on this website are provided as a service to the astronomical community with the specific intent that they be used for calibrating data obtained with other radio instruments, for placing observations obtained with other instruments in context, and for selecting currently active objects or objects with specific variability properties for inclusion in future observing proposals with other instruments. If any publication makes use of the long term data in these specified ways, please add the following acknowledgement: `This research has made use of data from the University of Michigan Radio Astronomy Observatory which has been supported by the University of Michigan and by a series of grants from the National Science Foundation, most recently AST-0607523.'

The database will soon be accessible with returned data in the form of ascii tables following the instructions below. AT PRESENT ONLY LIGHT CURVES OF SELECTED SOURCES ARE AVAILABLE To browse the primary sources for which data may be accessed, scroll to the listings below, or "hop" into each two-hourly range of sources -- which facilitates locating sources with a particular RA. The list covers UMRAO's best-observed objects; to see what other sources the database contains, use the button to bring up a list of every object in the database.

Once you are ready to query the database, click on the buttons corresponding to the sources that interest you and/or enter a source name by hand using the 1950 position ID (e.g., 1652+398) in the appropriate dialog box; type your full e-mail address into the dialog box, change the start and stop dates and averaging interval as desired, select the "mode" Then click on the "dispatch box". NOTE: using the "hop to" buttons will clear all your entries, and so you must use "scroll" to move through the document once you start entering values.

The start and stop dates (there are defaults) should be in YYMMDD format. The default start date (900101) will bring up the recent data, but for many sources earlier data are also available. The averaging interval (the default is 30 days) should be given in days, and lie between 1 and 10000. Choose one of S only , SPX , SQU for the format of the returned data. Choose What data exist? for a report on what data are available in the database for the checked sources. (Dates and averaging not then used.)


What's New: As time permits, we are adding plots of selected sources to the database. The plots are indicated by the notations S or SPX following a source name. S indicates total flux density only, while SPX denotes that both linear polarization and total flux density are shown. All data are 14-day averages of the individual UMRAO measurements. The linear polarization is given in the form of electric vector position angle (X) and fractional linear polarization (P). Please note when comparing these results with VLBI data that the EVPA range is 0-180 degrees and not 0-360 degrees due to ambiguities in their determination.


Scroll or Hop/Back to peruse the list of sources. Data entry and dispatch boxes at end. Only Scroll When Making Selection. Note: PC/Mac problems?

Hop to [00] [02] [04] [06] [08] [10] [12] [14] [16] [18] [20] [22] hr., or [End]


[00-01] hours

0003-066 (NRAO 5  )           0007+106 (III ZW 2)
0016+731 (  ....  )           0022+638 (3C 10   )
0040+517 (3C 20   )           0048-097 (  ....  )   S
0059+581 (  ....  )   S     0106+013 (  ....  )
0108+388 (  ....  )           0109+224 (  ....  )
0127+233 (3C 43   )           0133+476 (DA 55   )   S
0134+329 (3C 48   )           0153+744 (  ....  )

[02-03] hours

0202+149 (NRAO 91 )
0212+735 (  ....  )           0215+015 (OD 026  )   S
0218+357 (  ....  )           0219+428 (3C 66A  )
0220+427 (3C 66B  )           0234+285 (CTD 20  )
0235+164 (  ....  )   S     0300+470 (OE 400  )
0306+102 (OE 110  )           0315+416 (3C 83.1 )
0316+413 (3C 84   )   S     0323+022 (  ....  )
0333+321 (NRAO 140)           0336-019 (CTA 26  )
0355+508 (NRAO 150)   S

[04-05] hours

0415+379 (3C 111  )  S      0420-014 (  ....  )   GIF
0422+004 (OF 038  )           0430+052 (3C 120  )   GIF
0440-003 (NRAO 190)           0454-234 (OF-292  )
0458-020 (  ....  )  S      0518+165 (3C 138  )
0521-365 (  ....  )           0528+134 (  ....  )   GIF
0528-250 (  ....  )           0538+498 (3C 147  )
0552+398 (DA 193  )

[06-07] hours

0605+480 (3C 153  )           0605-085 (  ....  )
0607-157 (  ....  )  S      0710+439 (OI 417  )
0711+356 (OI 318  )           0716+714 (  ....  )  S
0723+679 (3C 179  )           0727-115 (  ....  )  S
0735+178 (  ....  )  S      0754+100 (OI 90.4 )

[08-09] hours

0804+499 (  ....  )           0808+019 (  ....  )
0809+483 (3C 196  )           0814+425 (  ....  )  GIF
0818-128 (  ....  )           0829+046 (  ....  )
0831+557 (4C 55.16)           0836+710 (  ....  )
0838+133 (3C 207  )           0850+581 (  ....  )
0851+202 (OJ 287  ) S       0859+470 (  ....  )
0906+430 (3C 216  )           0912+297 (  ....  )
0915-118 (3C 218  )           0917+458 (3C 219  )
0917+624 (  ....  )           0923+392 (4C 39.25)
0945+408 (4C 20.24)           0951+699 (M 82    )
0954+556 (4C 55.17)           0954+658 (  ....  )
0957+227 (4C 22.25)

[10-11] hours

1003+351 (3C 236  )           1031+567 (  ....  )
1034-293 (  ....  )           1038+528 (  ....  )
1040+123 (3C 245  )           1055+018 (  ....  )  S
1100+772 (3C 249.1)           1101+384 (MK 421  )
1127-145 (  ....  ) S       1133+704 (  ....  )
1137+660 (  ....  )           1147+245 (OM 280  )
1148-001 (  ....  )           1156+295 (  ....  )  GIF
1157+732 (3C 268.1)

[12-13] hours

1215+303 (ON 325  )           1217+023 (  ....  )
1219+285 (ON 231  ) GIF       1222+216 (  ....  )  S
1225+206 (4C 20.29)           1226+023 (3C 273  )  S
1253-055 (3C 279  ) S
1254+476 (3C 280  )           1307+121 (4C 12.46)
1308+326 (  ....  ) S       1328+307 (3C 286  )
1335-127 (  ....  ) S       1354-152 (OP-192  )
1358+624 (4C 66.22)

[14-15] hours

1400+162 (  ....  )           1409+524 (3C 295  )
1413+135 (  ....  )  S      1418+546 (  ....  )
1458+718 (3C 309.1)           1502+106 (OR 103  )   GIF
1510-089 (  ....  )  S      1514+197 (  ....  )
1514-241 (AP LIB  )           1538+149 (4C 14.60)
1543+005 (  ....  )

[16-17] hours

1606+106 (  ....  )           1609+660 (3C 330  )
1611+343 (DA 406  ) S       1624+416 (4C 41.32)
1633+382 (  ....  ) S       1634+628 (3C 343  )
1637+574 (  ....  )           1641+399 (3C 345  )    S
1642+690 (  ....  ) S      1652+398 (MK 501  )
1717+178 (OT 129  )
1721+343 (  ....  )           1727+502 (I ZW 187)
1730-130 (NRAO 530)  S      1739+522 (  ....  )
1741-038 (  ....  )  S      1749+096 (OT 081  )   S
1749+701 (  ....  )

[18-19] hours

1803+784 (  ....  )  S      1807+698 (3C 371  )
1817-162 (M 17    )           1823+568 (  ....  )
1828+487 (3C 380  )           1842+455 (3C 388  )
1845+797 (3C 390.3)           1901+319 (3C 395  )
1921-293 (OV-236  ) S       1928+738 (  ....  )
1939+605 (3C 401  )           1951+498 (  ....  )
1954+513 (OV 591  ) 

[20-21] hours

2005+403 (  ....  )  S      2007+777 (  ....  )
2014+370 (  ....  )           2021+614 (OW 637  )
2032+107 (  ....  )           2037+421 (PD 21   )
2121+053 (OX 036  ) S       2131-021 (  ....  ) 
2134+004 (  ....  ) S       2136+141 (OX 161  )
2145+067 (  ....  ) S       2153+377 (3C 438  )
2155-152 (OX-192  )           2155-304 (  ....  )

[22-23] hours

2200+420 (BL LAC  )  S      2201+315 (4C 31.63)   GIF
2223-052 (3C 446  )  S      2229+391 (  ....  )
2230+114 (CTA 102 )  S      2243+394 (3C 452  )
2251+158 (3C 454.3)  S      2254+074 (OY 091  )
2311+612 (NGC7538A)           2335+031 (4C 03.59)
2345-167 (  ....  )           2351+456 (  ....  )
2352+495 (DA 611  )           2356+196 (  ....  )

[End of Source List]


Unlisted source entry:

Use 1950 positional name, e.g., 1652+398, NOT catalogue name.


Please give your full e-mail address; sorry, but we need this information in order to alert users about updates to the database.


Set the date range in YYMMDD format (MM={01,02...12}, DD={01,02...31}) and averaging period in days {1,2,..10000}:

start: stop: averaging:

Select for data type:




Questions and input appreciated:

Email Hugh or Margo Aller if there are questions during this revision period. No email, or want to be anonymous? (We don't look at this input frequently!)

mfa@umich.edu

Comments (optionally include Phone, Fax, etc.):


Go to:

the Astronomy Department homepage;

Hugh Aller's Home Page ;

Margo Aller's Home Page ;

Philip Hughes' Home Page ;


Document prepared by pah/12-94. Revised pah/07-00. Revised mfa/03-09