ASTROSAT CZTI

Data Quality Report

Orbit 32193

Creation date: 2024-06-27T20:37:26.808634
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/AS1A09_131T01_9000004690_32193cztM0_level2.evt modeM0/AS1A09_131T01_9000004690_32193cztM0_level2_quad_clean.evt
Size (bytes)568,270,080133,490,880
Size541.9 MB 127.3 MB
Events in quadrant A3,304,221913,163
Events in quadrant B5,299,964933,166
Events in quadrant C3,856,067889,742
Events in quadrant D4,310,344854,313

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139203
B0202252
C0154652
D0170502

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6483340.524449%
B64831782.745642%
C64833926.046583%
D64832844.380688%

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 7823 6484 0 0 0.00% 0.00%
B 7823 6484 12 12 0.15% 0.19%
C 7823 6484 42 42 0.54% 0.65%
D 7823 6484 146 146 1.87% 2.25%

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 15 174 41241 242.37 840 827 166.7
A 13 6 13882 78.29 840 827 166.7
A 13 254 12143 67.86 840 827 166.7
B 6 159 1812314 11768.99 843 824 153.9
B 0 229 69494 446.14 843 824 153.9
B 5 172 33055 209.4 843 824 153.9
C 0 10 246877 1336.09 803 809 184.2
C 14 238 205322 1110.45 803 809 184.2
C 14 254 100400 540.75 803 809 184.2
D 8 195 621983 3315.27 796 776 187.4
D 13 249 384095 2045.7 796 776 187.4
D 12 233 132549 703.25 796 776 187.4

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