Observation information
- date-obs: 2025-05-14
- time-obs: 12:53:57.229600000
- date-end: 2025-05-14
- time-end: 14:50:45.212300000
- obs_id: C09_011T07_9000006470
- exposure: 2701.88664675
- 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_52074cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006470_52074cztM0_level2_quad_clean.evt
|
Size (bytes) | 804,841,920 | 71,112,960 |
Size | 767.6 MB
| 67.8 MB
|
Events in quadrant A | 3,745,971 | 582,654 |
Events in quadrant B | 6,033,131 | 532,507 |
Events in quadrant C | 8,078,889 | 405,711 |
Events in quadrant D | 11,491,938 | 231,373 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 118 | 2 |
B | 0 | 116 | 0 |
C | 0 | 117 | 1 |
D | 0 | 117 | 1 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 12 | 1 |
B | 0 | 11 | 0 |
C | 0 | 11 | 0 |
D | 0 | 12 | 1 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 15172 | 249 |
B | 0 | 22132 | 263 |
C | 0 | 28427 | 492 |
D | 0 | 38650 | 556 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5736 | 228 | 3.974895% |
B | 5735 | 908 | 15.832607% |
C | 5722 | 1830 | 31.981825% |
D | 5726 | 3236 | 56.514146% |
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 | 7009 | 5753 | 153 | 153 | 2.18% | 2.66% |  |
B | 7009 | 5755 | 670 | 670 | 9.56% | 11.64% |  |
C | 7009 | 5736 | 1622 | 1622 | 23.14% | 28.28% |  |
D | 7009 | 5740 | 3244 | 3244 | 46.28% | 56.52% |  |
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 | 3 | 14 | 492392 | 3140.39 | 618 | 604 | 156.6 |
A | 3 | 95 | 174036 | 1107.48 | 618 | 604 | 156.6 |
A | 4 | 3 | 137218 | 872.37 | 618 | 604 | 156.6 |
B | 5 | 172 | 1378151 | 11319.26 | 572 | 554 | 121.7 |
B | 10 | 128 | 1186581 | 9745.19 | 572 | 554 | 121.7 |
B | 12 | 3 | 306639 | 2515.0 | 572 | 554 | 121.7 |
C | 15 | 224 | 5044193 | 33933.34 | 523 | 519 | 148.6 |
C | 5 | 80 | 148269 | 994.05 | 523 | 519 | 148.6 |
C | 13 | 3 | 106369 | 712.15 | 523 | 519 | 148.6 |
D | 15 | 94 | 4685641 | 38296.35 | 423 | 404 | 122.3 |
D | 6 | 42 | 3735589 | 30530.79 | 423 | 404 | 122.3 |
D | 12 | 3 | 455825 | 3722.54 | 423 | 404 | 122.3 |
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 |  |