Observation information
- date-obs: 2025-06-22
- time-obs: 22:15:15.197400000
- date-end: 2025-06-23
- time-end: 00:28:17.178200000
- obs_id: C09_011T07_9000006480
- exposure: 4592.16422111
- 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_9000006480_52659cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006480_52659cztM0_level2_quad_clean.evt
|
| Size (bytes) | 932,826,240 | 79,030,080 |
| Size | 889.6 MB
| 75.4 MB
|
| Events in quadrant A | 4,157,987 | 630,798 |
| Events in quadrant B | 10,728,096 | 487,970 |
| Events in quadrant C | 10,079,429 | 411,071 |
| Events in quadrant D | 9,046,675 | 394,866 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 14 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 134 | 0 |
| B | 0 | 134 | 0 |
| C | 0 | 134 | 0 |
| D | 0 | 134 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17429 | 2 |
| B | 0 | 36583 | 2 |
| C | 0 | 34632 | 2 |
| D | 0 | 31616 | 7 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6714 | 50 | 0.744713% |
| B | 6715 | 2243 | 33.402829% |
| C | 6715 | 2368 | 35.264334% |
| D | 6714 | 2220 | 33.065237% |
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 | 7655 | 6716 | 29 | 29 | 0.38% | 0.43% |  |
| B | 7655 | 6715 | 1819 | 1819 | 23.76% | 27.09% |  |
| C | 7655 | 6715 | 2294 | 2294 | 29.97% | 34.16% |  |
| D | 7655 | 6716 | 1790 | 1790 | 23.38% | 26.65% |  |
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 | 1084699 | 6344.29 | 678 | 661 | 170.9 |
| A | 4 | 249 | 56319 | 325.73 | 678 | 661 | 170.9 |
| A | 5 | 240 | 35831 | 205.83 | 678 | 661 | 170.9 |
| B | 10 | 128 | 5518315 | 42159.33 | 618 | 595 | 130.9 |
| B | 10 | 254 | 1114843 | 8513.65 | 618 | 595 | 130.9 |
| B | 12 | 32 | 579441 | 4422.8 | 618 | 595 | 130.9 |
| C | 15 | 233 | 5797013 | 38002.47 | 551 | 546 | 152.5 |
| C | 15 | 158 | 1037182 | 6796.34 | 551 | 546 | 152.5 |
| C | 15 | 248 | 331166 | 2167.59 | 551 | 546 | 152.5 |
| D | 8 | 176 | 3064681 | 19249.28 | 544 | 517 | 159.2 |
| D | 6 | 42 | 2635930 | 16555.83 | 544 | 517 | 159.2 |
| D | 1 | 7 | 223961 | 1403.69 | 544 | 517 | 159.2 |
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 |  |