ASTROSAT CZTI

Data Quality Report

Orbit 29197

Creation date: 2024-06-27T20:01:22.567067
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/AS1A10_053T19_9000004190_29197cztM0_level2.evt modeM0/AS1A10_053T19_9000004190_29197cztM0_level2_quad_clean.evt
Size (bytes)142,583,04030,680,640
Size136.0 MB 29.3 MB
Events in quadrant A717,366213,258
Events in quadrant B1,101,012212,198
Events in quadrant C1,060,208205,466
Events in quadrant D1,344,120195,419

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A029261
B042281
C041911
D049711

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A136930.219138%
B1369715.186267%
C1369443.214025%
D1369765.551497%

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 1368 1368 0 0 0.00% 0.00%
B 1368 1368 50 50 3.65% 3.65%
C 1368 1368 6 6 0.44% 0.44%
D 1368 1368 72 72 5.26% 5.26%

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 13 254 2971 72.13 185 182 38.7
A 0 226 1636 37.61 185 182 38.7
A 3 137 1616 37.09 185 182 38.7
B 5 255 231354 6418.75 182 178 36.0
B 0 183 62530 1731.24 182 178 36.0
B 0 229 57772 1599.13 182 178 36.0
C 3 233 350309 8298.67 173 174 42.2
C 14 238 28316 667.0 173 174 42.2
C 2 114 3616 81.58 173 174 42.2
D 1 52 475583 11183.11 172 167 42.5
D 8 195 123921 2911.04 172 167 42.5
D 7 69 19964 465.68 172 167 42.5

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