Observation information
- date-obs: 2025-06-22
- time-obs: 23:50:15.183900000
- date-end: 2025-06-23
- time-end: 02:17:21.163800000
- obs_id: C09_011T07_9000006480
- exposure: 3431.64198995
- 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_52660cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006480_52660cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,068,088,320 | 86,512,320 |
| Size | 1018.6 MB
| 82.5 MB
|
| Events in quadrant A | 5,258,584 | 694,781 |
| Events in quadrant B | 11,383,310 | 552,448 |
| Events in quadrant C | 14,524,668 | 299,537 |
| Events in quadrant D | 7,797,566 | 554,523 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 15 | 0 |
| C | 0 | 15 | 0 |
| D | 0 | 15 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 150 | 0 |
| B | 0 | 150 | 0 |
| C | 0 | 150 | 0 |
| D | 0 | 150 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 21014 | 3 |
| B | 0 | 38957 | 2 |
| C | 0 | 48256 | 2 |
| D | 0 | 28361 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7438 | 97 | 1.304114% |
| B | 7438 | 2202 | 29.604732% |
| C | 7438 | 4383 | 58.927131% |
| D | 7438 | 1083 | 14.560366% |
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 | 8008 | 7439 | 60 | 60 | 0.75% | 0.81% |  |
| B | 8008 | 7438 | 1718 | 1718 | 21.45% | 23.10% |  |
| C | 8008 | 7438 | 4304 | 4304 | 53.75% | 57.87% |  |
| D | 8008 | 7439 | 1165 | 1165 | 14.55% | 15.66% |  |
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 | 1722732 | 9170.41 | 748 | 729 | 187.8 |
| A | 3 | 62 | 128971 | 682.94 | 748 | 729 | 187.8 |
| A | 5 | 240 | 98359 | 519.92 | 748 | 729 | 187.8 |
| B | 10 | 128 | 5492167 | 37411.58 | 691 | 668 | 146.8 |
| B | 10 | 254 | 1836371 | 12505.97 | 691 | 668 | 146.8 |
| B | 2 | 249 | 387429 | 2634.86 | 691 | 668 | 146.8 |
| C | 15 | 233 | 9432970 | 67188.54 | 508 | 505 | 140.4 |
| C | 15 | 248 | 758923 | 5402.3 | 508 | 505 | 140.4 |
| C | 10 | 22 | 689979 | 4911.2 | 508 | 505 | 140.4 |
| D | 8 | 176 | 1871086 | 9313.25 | 686 | 652 | 200.8 |
| D | 2 | 153 | 991672 | 4934.48 | 686 | 652 | 200.8 |
| D | 1 | 7 | 944562 | 4699.91 | 686 | 652 | 200.8 |
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 |  |