ASTROSAT CZTI

Data Quality Report

Orbit 20160603_G05_009T01_9000000482_level2

Creation date: 2016-09-06T17:49:42.219523
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev: 1121 $

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1G05_009T01_9000000482cztM0_level2_bc.evt modeM0/AS1G05_009T01_9000000482cztM0_level2_quad_clean.evt
Size (bytes)3,876,465,6001,029,418,560
Size3.6 GB 981.7 MB
Events in quadrant A28,991,0396,124,945
Events in quadrant B37,349,2226,223,474
Events in quadrant C19,537,3656,238,945
Events in quadrant D25,031,2146,056,142

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A019420
B019420
C019420
D019420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01290
B01290
C01290
D01290

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02383480
B02565620
C01997080
D02211970

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A9531960616.358648%
B9531942184.425141%
C9531912061.265225%
D9531823192.432909%

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 113326 95325 1228 1228 1.08% 1.29%
B 113326 95324 1131 1131 1.00% 1.19%
C 113326 95319 50 50 0.04% 0.05%
D 113326 95319 202 202 0.18% 0.21%

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 13 251 9618102 9573.99 4506 4395 1004.1
A 13 164 696943 689.69 4506 4395 1004.1
A 0 50 497332 490.9 4506 4395 1004.1
B 14 167 9091712 10095.59 4638 4491 900.1
B 15 204 3601411 3996.05 4638 4491 900.1
B 5 70 3446266 3823.69 4638 4491 900.1
C 2 53 1081187 1058.54 4563 4471 1017.2
C 9 247 241513 233.04 4563 4471 1017.2
C 8 208 82316 76.53 4563 4471 1017.2
D 9 35 1961945 1826.57 4575 4388 1071.7
D 13 223 1580820 1470.95 4575 4388 1071.7
D 13 239 822776 763.63 4575 4388 1071.7

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