Observation information
- date-obs: 2017-04-16
- time-obs: 01:34:05.424400000
- date-end: 2017-04-16
- time-end: 06:44:34.409700000
- obs_id: C02_030T01_9000001168
- exposure: 14925.7282534
- 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_030T01_9000001168cztM0_level2.evt
| modeM0/AS1C02_030T01_9000001168cztM0_level2_quad_clean.evt
|
Size (bytes) | 973,635,840 | 288,688,320 |
Size | 928.5 MB
| 275.3 MB
|
Events in quadrant A | 7,000,737 | 1,938,805 |
Events in quadrant B | 7,373,354 | 1,973,321 |
Events in quadrant C | 6,679,620 | 1,939,939 |
Events in quadrant D | 7,416,558 | 1,857,104 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 30931 | 0 |
B | 0 | 31498 | 0 |
C | 0 | 30482 | 0 |
D | 0 | 32617 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 306 | 0 |
B | 0 | 306 | 0 |
C | 0 | 306 | 0 |
D | 0 | 306 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 36 | 0 |
B | 0 | 36 | 0 |
C | 0 | 36 | 0 |
D | 0 | 36 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 15010 | 97 | 0.646236% |
B | 15002 | 107 | 0.713238% |
C | 15011 | 30 | 0.199853% |
D | 15018 | 112 | 0.745772% |
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 | 18630 | 15033 | 26 | 26 | 0.14% | 0.17% |  |
B | 18630 | 15031 | 14 | 14 | 0.08% | 0.09% |  |
C | 18630 | 15029 | 1 | 1 | 0.01% | 0.01% |  |
D | 18630 | 15033 | 69 | 69 | 0.37% | 0.46% |  |
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 | 14 | 111 | 150977 | 423.75 | 1768 | 1736 | 352.2 |
A | 1 | 162 | 24391 | 64.33 | 1768 | 1736 | 352.2 |
A | 0 | 226 | 17009 | 43.37 | 1768 | 1736 | 352.2 |
B | 0 | 214 | 230072 | 701.95 | 1772 | 1729 | 325.3 |
B | 10 | 16 | 76196 | 228.92 | 1772 | 1729 | 325.3 |
B | 4 | 81 | 55582 | 165.55 | 1772 | 1729 | 325.3 |
C | 1 | 16 | 28546 | 69.36 | 1705 | 1711 | 386.9 |
C | 13 | 61 | 13304 | 29.96 | 1705 | 1711 | 386.9 |
C | 3 | 202 | 4338 | 6.79 | 1705 | 1711 | 386.9 |
D | 13 | 122 | 217138 | 532.16 | 1703 | 1652 | 404.9 |
D | 12 | 233 | 143903 | 351.3 | 1703 | 1652 | 404.9 |
D | 7 | 71 | 97472 | 236.64 | 1703 | 1652 | 404.9 |
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 |  |