Observation information
- date-obs: 2025-05-16
- time-obs: 01:09:48.926600000
- date-end: 2025-05-16
- time-end: 03:16:46.910600000
- obs_id: C09_011T07_9000006470
- exposure: 1293.57229882
- sourceid: NGC 188
- observer: stalin
- ra_pnt: 12.08
- dec_pnt: 85.15722
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1C09_011T07_9000006470_52096cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006470_52096cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,098,898,560 | 82,238,400 |
Size | 1.0 GB
| 78.4 MB
|
Events in quadrant A | 5,985,100 | 673,454 |
Events in quadrant B | 4,386,631 | 738,272 |
Events in quadrant C | 12,062,058 | 477,177 |
Events in quadrant D | 17,664,369 | 75,034 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 148 | 0 |
B | 0 | 148 | 0 |
C | 0 | 148 | 0 |
D | 0 | 148 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 1 | 140223219832872 | 140222092279854 |
B | 1 | -1 | -1 |
C | 1 | -1 | -1 |
D | 1 | -1 | -1 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 22988 | 0 |
B | 0 | 18386 | 0 |
C | 0 | 41090 | 0 |
D | 0 | 57547 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7483 | 400 | 5.345450% |
B | 7498 | 156 | 2.080555% |
C | 7492 | 3316 | 44.260545% |
D | 7480 | 7480 | 100.000000% |
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 | 7618 | 7497 | 453 | 453 | 5.95% | 6.04% |  |
B | 7619 | 7510 | 113 | 113 | 1.48% | 1.50% |  |
C | 7619 | 7502 | 3134 | 3134 | 41.13% | 41.78% |  |
D | 7619 | 7495 | 5636 | 5636 | 73.97% | 75.20% |  |
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 | 12 | 3 | 1242046 | 6619.65 | 755 | 736 | 187.5 |
A | 8 | 43 | 889435 | 4739.25 | 755 | 736 | 187.5 |
A | 12 | 194 | 157329 | 835.08 | 755 | 736 | 187.5 |
B | 10 | 254 | 521000 | 3166.4 | 766 | 739 | 164.3 |
B | 5 | 172 | 121486 | 734.89 | 766 | 739 | 164.3 |
B | 8 | 128 | 104390 | 630.84 | 766 | 739 | 164.3 |
C | 5 | 80 | 5507512 | 36440.39 | 539 | 534 | 151.1 |
C | 15 | 224 | 3823361 | 25296.14 | 539 | 534 | 151.1 |
C | 13 | 3 | 146798 | 967.85 | 539 | 534 | 151.1 |
D | 15 | 94 | 9447240 | 314824.81 | 99 | 94 | 30.0 |
D | 6 | 42 | 3040430 | 101318.77 | 99 | 94 | 30.0 |
D | 12 | 17 | 2659767 | 88633.23 | 99 | 94 | 30.0 |
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 |  |