Observation information
- date-obs: 2018-01-22
- time-obs: 17:14:55.378500000
- date-end: 2018-01-22
- time-end: 19:44:56.318800000
- obs_id: C02_016T01_9000001858
- exposure: 7718.15968195
- sourceid: NGC 188
- observer: annapurni
- ra_pnt: 12.08
- dec_pnt: 85.22392
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1C02_016T01_9000001858cztM0_level2_bc.evt
| modeM0/AS1C02_016T01_9000001858cztM0_level2_quad_clean.evt
|
Size (bytes) | 277,240,320 | 147,294,720 |
Size | 264.4 MB
| 140.5 MB
|
Events in quadrant A | 1,768,026 | 982,331 |
Events in quadrant B | 2,015,941 | 999,189 |
Events in quadrant C | 1,536,251 | 999,004 |
Events in quadrant D | 2,537,078 | 938,744 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 17081 | 0 |
B | 0 | 17975 | 0 |
C | 0 | 15889 | 0 |
D | 0 | 19226 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 162 | 0 |
B | 0 | 162 | 0 |
C | 0 | 162 | 0 |
D | 0 | 162 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 12 | 0 |
B | 0 | 12 | 0 |
C | 0 | 12 | 0 |
D | 0 | 12 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7792 | 40 | 0.513347% |
B | 7792 | 271 | 3.477926% |
C | 7792 | 24 | 0.308008% |
D | 7792 | 222 | 2.849076% |
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 | 8953 | 7793 | 0 | 0 | 0.00% | 0.00% |  |
B | 8953 | 7793 | 1 | 1 | 0.01% | 0.01% |  |
C | 8953 | 7793 | 0 | 0 | 0.00% | 0.00% |  |
D | 8953 | 7793 | 38 | 38 | 0.42% | 0.49% |  |
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 | 8 | 15 | 113406 | 1269.0 | 393 | 384 | 89.1 |
A | 1 | 162 | 85513 | 955.82 | 393 | 384 | 89.1 |
A | 13 | 248 | 21240 | 234.17 | 393 | 384 | 89.1 |
B | 4 | 239 | 363453 | 4662.37 | 396 | 386 | 77.9 |
B | 15 | 222 | 36716 | 466.54 | 396 | 386 | 77.9 |
B | 0 | 205 | 36292 | 461.09 | 396 | 386 | 77.9 |
C | 13 | 61 | 2262 | 20.91 | 391 | 386 | 89.7 |
C | 3 | 233 | 2133 | 19.47 | 391 | 386 | 89.7 |
C | 8 | 222 | 1725 | 14.92 | 391 | 386 | 89.7 |
D | 1 | 52 | 521779 | 5692.31 | 386 | 372 | 91.6 |
D | 1 | 255 | 280874 | 3062.3 | 386 | 372 | 91.6 |
D | 8 | 195 | 99481 | 1081.99 | 386 | 372 | 91.6 |
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 |  |