Observation information
- date-obs: 2016-11-18
- time-obs: 13:38:05.334000000
- date-end: 2016-11-19
- time-end: 00:40:05.329000000
- obs_id: A02_152T01_9000000806
- exposure: 18734.8932671
- sourceid: ngc1904
- observer: snehalata
- ra_pnt: 80.95963
- dec_pnt: -24.36744
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A02_152T01_9000000806cztM0_level2_bc.evt
| modeM0/AS1A02_152T01_9000000806cztM0_level2_quad_clean.evt
|
Size (bytes) | 878,523,840 | 367,548,480 |
Size | 837.8 MB
| 350.5 MB
|
Events in quadrant A | 6,067,069 | 2,337,298 |
Events in quadrant B | 6,526,794 | 2,391,137 |
Events in quadrant C | 5,690,783 | 2,258,298 |
Events in quadrant D | 6,380,251 | 2,197,013 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 586 | 0 |
B | 0 | 584 | 0 |
C | 0 | 586 | 0 |
D | 0 | 586 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 60266 | 0 |
B | 0 | 62236 | 0 |
C | 0 | 59158 | 0 |
D | 0 | 61145 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 64 | 0 |
B | 0 | 65 | 0 |
C | 0 | 64 | 0 |
D | 0 | 64 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 28329 | 352 | 1.242543% |
B | 28354 | 484 | 1.706990% |
C | 28250 | 211 | 0.746903% |
D | 28276 | 250 | 0.884142% |
Noise dominated fraction
Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.
Quadrant |
# 1 sec bins |
Bins with >0 counts |
Bins with >2000 counts |
High rate bins dominated by noise |
Noise dominated (total time) |
Noise dominated (detector-on time) |
Marked lightcurve |
A | 39721 | 30005 | 5 | 5 | 0.01% | 0.02% |  |
B | 39721 | 30061 | 12 | 12 | 0.03% | 0.04% |  |
C | 39721 | 29939 | 5 | 5 | 0.01% | 0.02% |  |
D | 39721 | 30026 | 41 | 41 | 0.10% | 0.14% |  |
Top noisy pixels
Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1
Pixel properties |
Quadrant properties |
Quadrant |
DetID |
PixID |
Counts |
Sigma |
Mean |
Median |
Sigma |
A | 8 | 15 | 292218 | 920.6 | 1444 | 1414 | 315.9 |
A | 15 | 234 | 110559 | 345.52 | 1444 | 1414 | 315.9 |
A | 13 | 251 | 42509 | 130.09 | 1444 | 1414 | 315.9 |
B | 3 | 64 | 620124 | 2217.57 | 1471 | 1431 | 279.0 |
B | 4 | 80 | 95082 | 335.67 | 1471 | 1431 | 279.0 |
B | 15 | 204 | 61677 | 215.94 | 1471 | 1431 | 279.0 |
C | 12 | 16 | 147783 | 475.43 | 1399 | 1375 | 307.9 |
C | 1 | 16 | 42168 | 132.47 | 1399 | 1375 | 307.9 |
C | 9 | 16 | 11481 | 32.82 | 1399 | 1375 | 307.9 |
D | 2 | 136 | 503249 | 1550.33 | 1407 | 1353 | 323.7 |
D | 8 | 195 | 124178 | 379.4 | 1407 | 1353 | 323.7 |
D | 10 | 172 | 122113 | 373.02 | 1407 | 1353 | 323.7 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
Quadrant A |
 |
 |
Quadrant B |
Quadrant D |
 |
 |
Quadrant C |
Count rate plots and images
Plot type |
Count rate plots |
Images |
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data. |
 |
 |
Quadrant-wise count rates
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
 |
 |
Housekeeping plots
Parameter |
Plot |
CZT HV Monitor |  |
D_VDD |  |
Temperature 1 |  |
Veto HV Monitor |  |
Veto LLD |  |
Alpha Counter |  |
_CPM_Rate |  |
CZT Counter |  |
+2.5 Volts monitor |  |
+5 Volts monitor |  |
_ROLL_ROT |  |
_Roll_DEC |  |
_Roll_RA |  |
Veto Counter |  |