Observation information
- date-obs: 2022-12-01
- time-obs: 21:05:16.460700000
- date-end: 2022-12-01
- time-end: 23:24:05.455600000
- obs_id: A12_061T07_9000005402
- exposure: 4876.83416951
- sourceid: NGC1808
- observer: jyoti
- ra_pnt: 76.92641
- dec_pnt: -37.51306
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A12_061T07_9000005402_38809cztM0_level2.fits
| modeM0/AS1A12_061T07_9000005402_38809cztM0_level2_quad_clean.evt
|
Size (bytes) | 364,921,920 | 95,613,120 |
Size | 348.0 MB
| 91.2 MB
|
Events in quadrant A | 3,064,048 | 656,805 |
Events in quadrant B | 2,731,327 | 684,802 |
Events in quadrant C | 2,663,385 | 638,918 |
Events in quadrant D | 4,645,162 | 551,100 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 31 | 0 |
B | 0 | 31 | 0 |
C | 0 | 31 | 0 |
D | 0 | 32 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 106 | 0 |
B | 0 | 106 | 0 |
C | 0 | 106 | 0 |
D | 0 | 106 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 12274 | 3 |
B | 0 | 11300 | 2 |
C | 0 | 10843 | 2 |
D | 0 | 17509 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5196 | 14 | 0.269438% |
B | 5196 | 27 | 0.519630% |
C | 5196 | 9 | 0.173210% |
D | 5196 | 346 | 6.658968% |
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 | 7259 | 5197 | 8 | 8 | 0.11% | 0.15% |  |
B | 7259 | 5197 | 17 | 17 | 0.23% | 0.33% |  |
C | 7259 | 5197 | 4 | 4 | 0.06% | 0.08% |  |
D | 7259 | 5197 | 303 | 303 | 4.17% | 5.83% |  |
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 | 10 | 83 | 385811 | 3164.87 | 604 | 593 | 121.7 |
A | 12 | 16 | 255557 | 2094.73 | 604 | 593 | 121.7 |
A | 12 | 194 | 40920 | 331.32 | 604 | 593 | 121.7 |
B | 5 | 200 | 146876 | 1261.38 | 610 | 595 | 116.0 |
B | 5 | 184 | 92371 | 791.38 | 610 | 595 | 116.0 |
B | 0 | 230 | 56502 | 482.08 | 610 | 595 | 116.0 |
C | 15 | 214 | 230762 | 1649.82 | 599 | 604 | 139.5 |
C | 0 | 239 | 58920 | 418.02 | 599 | 604 | 139.5 |
C | 0 | 10 | 26032 | 182.27 | 599 | 604 | 139.5 |
D | 2 | 16 | 734648 | 5246.19 | 575 | 560 | 139.9 |
D | 12 | 235 | 625779 | 4468.15 | 575 | 560 | 139.9 |
D | 12 | 227 | 493200 | 3520.67 | 575 | 560 | 139.9 |
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 |  |