Observation information
- date-obs: 2025-05-14
- time-obs: 11:08:19.246100000
- date-end: 2025-05-14
- time-end: 13:07:44.227500000
- obs_id: C09_011T07_9000006470
- exposure: 3150.70203966
- 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_52073cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006470_52073cztM0_level2_quad_clean.evt
|
Size (bytes) | 923,667,840 | 70,297,920 |
Size | 880.9 MB
| 67.0 MB
|
Events in quadrant A | 5,864,045 | 503,849 |
Events in quadrant B | 6,837,466 | 511,779 |
Events in quadrant C | 8,804,298 | 413,679 |
Events in quadrant D | 12,208,550 | 267,095 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 126 | 0 |
B | 0 | 126 | 0 |
C | 0 | 126 | 0 |
D | 0 | 126 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10 | 0 |
B | 0 | 10 | 0 |
C | 0 | 10 | 0 |
D | 0 | 10 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 21671 | 6 |
B | 0 | 24562 | 1 |
C | 0 | 30437 | 17 |
D | 0 | 40535 | 19 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6178 | 1037 | 16.785367% |
B | 6181 | 1276 | 20.643909% |
C | 6177 | 1985 | 32.135341% |
D | 6177 | 3344 | 54.136312% |
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 | 7165 | 6179 | 914 | 914 | 12.76% | 14.79% |  |
B | 7166 | 6181 | 1092 | 1092 | 15.24% | 17.67% |  |
C | 7166 | 6181 | 1793 | 1793 | 25.02% | 29.01% |  |
D | 7166 | 6180 | 3336 | 3336 | 46.55% | 53.98% |  |
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 | 4 | 95 | 1245640 | 8071.21 | 617 | 601 | 154.3 |
A | 3 | 95 | 971087 | 6291.36 | 617 | 601 | 154.3 |
A | 3 | 14 | 256703 | 1660.23 | 617 | 601 | 154.3 |
B | 5 | 172 | 1742579 | 13872.05 | 587 | 567 | 125.6 |
B | 10 | 128 | 1721733 | 13706.05 | 587 | 567 | 125.6 |
B | 10 | 254 | 157060 | 1246.19 | 587 | 567 | 125.6 |
C | 15 | 224 | 5060710 | 33582.39 | 542 | 536 | 150.7 |
C | 15 | 254 | 249545 | 1652.57 | 542 | 536 | 150.7 |
C | 15 | 215 | 241611 | 1599.92 | 542 | 536 | 150.7 |
D | 15 | 94 | 3892748 | 27946.42 | 476 | 453 | 139.3 |
D | 6 | 42 | 3787947 | 27193.95 | 476 | 453 | 139.3 |
D | 13 | 187 | 762350 | 5470.37 | 476 | 453 | 139.3 |
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 |  |