ASTROSAT CZTI

Data Quality Report

Orbit 13210

Creation date: 2024-06-27T16:37:45.458694
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

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/AS1A04_104T04_9000001966_13210cztM0_level2.evt modeM0/AS1A04_104T04_9000001966_13210cztM0_level2_quad_clean.evt
Size (bytes)154,411,2009,480,960
Size147.3 MB 9.0 MB
Events in quadrant A862,84042,387
Events in quadrant B1,931,41842,473
Events in quadrant C789,10542,654
Events in quadrant D981,88240,934

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A034870
B068110
C032820
D039200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A159760.375704%
B159753733.625548%
C159730.187852%
D1597140.876644%

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 1598 1598 1 1 0.06% 0.06%
B 1598 1598 336 336 21.03% 21.03%
C 1598 1598 0 0 0.00% 0.00%
D 1598 1598 4 4 0.25% 0.25%

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 59837 1364.66 203 198 43.7
A 1 162 7734 172.44 203 198 43.7
A 12 96 7066 157.15 203 198 43.7
B 4 239 1212978 34524.05 174 170 35.1
B 3 209 20433 576.81 174 170 35.1
B 0 197 5735 158.41 174 170 35.1
C 15 208 15162 316.14 198 199 47.3
C 13 61 1429 25.99 198 199 47.3
C 14 234 1003 16.99 198 199 47.3
D 1 52 70978 1409.71 199 192 50.2
D 14 34 58152 1154.28 199 192 50.2
D 8 195 55531 1102.08 199 192 50.2

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