Observation information
- date-obs: 2025-05-13
- time-obs: 00:18:29.533600000
- date-end: 2025-05-13
- time-end: 02:23:10.517200000
- obs_id: C09_011T06_9000006468
- exposure: 42.8841365576
- 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_52051cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_52051cztM0_level2_quad_clean.evt
|
Size (bytes) | 982,647,360 | 80,297,280 |
Size | 937.1 MB
| 76.6 MB
|
Events in quadrant A | 4,071,221 | 669,602 |
Events in quadrant B | 7,276,880 | 588,423 |
Events in quadrant C | 4,932,110 | 648,761 |
Events in quadrant D | 19,513,846 | 3,502 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 17670 | 0 |
B | 0 | 26877 | 0 |
C | 0 | 20117 | 0 |
D | 0 | 63089 | 2 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 150 | 0 |
B | 0 | 150 | 0 |
C | 0 | 150 | 0 |
D | 0 | 150 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7481 | 179 | 2.392728% |
B | 7482 | 1572 | 21.010425% |
C | 7482 | 323 | 4.317028% |
D | 7481 | 7453 | 99.625718% |
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 | 7481 | 7481 | 140 | 140 | 1.87% | 1.87% |  |
B | 7481 | 7481 | 1005 | 1005 | 13.43% | 13.43% |  |
C | 7482 | 7482 | 285 | 285 | 3.81% | 3.81% |  |
D | 7480 | 7480 | 7284 | 7284 | 97.38% | 97.38% |  |
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 | 15 | 174 | 292436 | 1555.82 | 741 | 722 | 187.5 |
A | 8 | 43 | 102004 | 540.17 | 741 | 722 | 187.5 |
A | 8 | 247 | 99222 | 525.34 | 741 | 722 | 187.5 |
B | 12 | 32 | 2055005 | 14369.93 | 668 | 643 | 143.0 |
B | 8 | 3 | 1146035 | 8011.83 | 668 | 643 | 143.0 |
B | 5 | 172 | 531594 | 3713.92 | 668 | 643 | 143.0 |
C | 15 | 224 | 982024 | 4873.76 | 731 | 724 | 201.3 |
C | 1 | 242 | 431902 | 2141.5 | 731 | 724 | 201.3 |
C | 15 | 230 | 120945 | 597.09 | 731 | 724 | 201.3 |
D | 15 | 94 | 16690661 | 354895.61 | 145 | 137 | 47.0 |
D | 6 | 42 | 1260449 | 26798.39 | 145 | 137 | 47.0 |
D | 0 | 18 | 277968 | 5907.6 | 145 | 137 | 47.0 |
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 |  |