ASTROSAT CZTI

Data Quality Report

Orbit 13633

Creation date: 2024-06-27T16:43:43.605862
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/AS1G08_038T01_9000002018_13633cztM0_level2.evt modeM0/AS1G08_038T01_9000002018_13633cztM0_level2_quad_clean.evt
Size (bytes)547,522,56099,587,520
Size522.2 MB 95.0 MB
Events in quadrant A3,141,726637,565
Events in quadrant B3,331,719657,262
Events in quadrant C3,288,888690,490
Events in quadrant D6,387,487585,682

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132753
B0137752
C0134742
D0231332

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6378240.376294%
B6378410.642835%
C6378230.360615%
D637879912.527438%

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 7659 6380 0 0 0.00% 0.00%
B 7659 6380 13 13 0.17% 0.20%
C 7659 6380 3 3 0.04% 0.05%
D 7659 6380 772 772 10.08% 12.10%

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 1 162 23731 141.35 803 789 162.3
A 15 69 12724 73.53 803 789 162.3
A 1 178 8481 47.39 803 789 162.3
B 3 64 70530 465.72 806 789 149.7
B 0 219 52575 345.82 806 789 149.7
B 0 245 19491 124.89 806 789 149.7
C 3 233 189702 1054.79 790 800 179.1
C 14 234 13163 69.03 790 800 179.1
C 13 61 5564 26.6 790 800 179.1
D 5 222 1984288 10300.08 734 721 192.6
D 13 122 1271306 6597.77 734 721 192.6
D 8 195 151327 782.05 734 721 192.6

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