ASTROSAT CZTI

Data Quality Report

Orbit 19687

Creation date: 2024-06-27T18:06:15.089143
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/AS1A05_101T05_9000002938_19687cztM0_level2.evt modeM0/AS1A05_101T05_9000002938_19687cztM0_level2_quad_clean.evt
Size (bytes)96,393,60027,457,920
Size91.9 MB 26.2 MB
Events in quadrant A652,700187,128
Events in quadrant B655,449189,364
Events in quadrant C856,534176,181
Events in quadrant D660,655178,346

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A027771
B027731
C033301
D028462

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1340181.343284%
B1340201.492537%
C1340816.044776%
D1339151.120239%

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 1340 1340 0 0 0.00% 0.00%
B 1340 1340 0 0 0.00% 0.00%
C 1340 1340 40 40 2.99% 2.99%
D 1339 1339 1 1 0.07% 0.07%

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 11 29 8297 233.0 166 162 34.9
A 13 252 2602 69.89 166 162 34.9
A 13 210 1657 42.82 166 162 34.9
B 12 111 3771 107.3 166 162 33.6
B 11 111 3324 94.01 166 162 33.6
B 14 111 2977 83.7 166 162 33.6
C 3 233 188407 4724.7 163 164 39.8
C 14 238 25279 630.36 163 164 39.8
C 8 208 4544 109.93 163 164 39.8
D 1 20 24149 581.58 166 161 41.2
D 2 234 4119 95.96 166 161 41.2
D 1 52 3466 80.13 166 161 41.2

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