Observation information
- date-obs: 2025-05-06
- time-obs: 17:18:11.785800000
- date-end: 2025-05-06
- time-end: 19:20:29.768500000
- obs_id: C09_011T06_9000006468
- exposure: 4411.39116782
- 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_011T06_9000006468_51958cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_51958cztM0_level2_quad_clean.evt
|
Size (bytes) | 767,367,360 | 80,657,280 |
Size | 731.8 MB
| 76.9 MB
|
Events in quadrant A | 5,010,297 | 567,410 |
Events in quadrant B | 5,813,757 | 565,713 |
Events in quadrant C | 8,580,010 | 417,070 |
Events in quadrant D | 8,519,737 | 456,173 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 19174 | 1 |
B | 0 | 21567 | 1 |
C | 0 | 29802 | 1 |
D | 0 | 29548 | 3 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11 | 0 |
B | 0 | 11 | 0 |
C | 0 | 11 | 0 |
D | 0 | 11 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 128 | 0 |
B | 0 | 128 | 0 |
C | 0 | 128 | 0 |
D | 0 | 128 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6233 | 427 | 6.850634% |
B | 6234 | 1006 | 16.137312% |
C | 6234 | 2115 | 33.926853% |
D | 6233 | 1375 | 22.060003% |
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 | 7338 | 6234 | 283 | 283 | 3.86% | 4.54% |  |
B | 7339 | 6235 | 738 | 738 | 10.06% | 11.84% |  |
C | 7339 | 6234 | 1530 | 1530 | 20.85% | 24.54% |  |
D | 7338 | 6234 | 1418 | 1418 | 19.32% | 22.75% |  |
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 | 7 | 64 | 1610914 | 10103.7 | 640 | 623 | 159.4 |
A | 4 | 249 | 170801 | 1067.77 | 640 | 623 | 159.4 |
A | 4 | 3 | 145473 | 908.86 | 640 | 623 | 159.4 |
B | 10 | 41 | 2114391 | 16275.27 | 616 | 597 | 129.9 |
B | 8 | 3 | 171038 | 1312.32 | 616 | 597 | 129.9 |
B | 8 | 234 | 125749 | 963.61 | 616 | 597 | 129.9 |
C | 15 | 224 | 5265721 | 35832.31 | 527 | 521 | 146.9 |
C | 4 | 5 | 505902 | 3439.37 | 527 | 521 | 146.9 |
C | 13 | 3 | 159981 | 1085.2 | 527 | 521 | 146.9 |
D | 6 | 42 | 2714486 | 16351.97 | 589 | 562 | 166.0 |
D | 12 | 16 | 1658756 | 9990.97 | 589 | 562 | 166.0 |
D | 2 | 172 | 631873 | 3803.78 | 589 | 562 | 166.0 |
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 |  |