ASTROSAT CZTI

Data Quality Report

Orbit 29370

Creation date: 2024-06-27T20:03:19.793854
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/AS1T03_279T01_9000004218_29370cztM0_level2.evt modeM0/AS1T03_279T01_9000004218_29370cztM0_level2_quad_clean.evt
Size (bytes)656,789,760105,854,400
Size626.4 MB 101.0 MB
Events in quadrant A3,386,858740,485
Events in quadrant B3,580,790742,200
Events in quadrant C3,592,527712,110
Events in quadrant D8,908,227574,441

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136711
B0143471
C0143981
D0308961

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6252530.847729%
B6252751.199616%
C62521071.711452%
D6252201532.229687%

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 7542 6253 0 0 0.00% 0.00%
B 7542 6253 4 4 0.05% 0.06%
C 7542 6253 0 0 0.00% 0.00%
D 7542 6253 1808 1808 23.97% 28.91%

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 12445 67.35 876 863 172.0
A 0 226 7548 38.87 876 863 172.0
A 3 137 7282 37.33 876 863 172.0
B 15 33 83069 521.19 857 841 157.8
B 0 190 37643 233.27 857 841 157.8
B 0 230 30706 189.3 857 841 157.8
C 14 238 141969 724.54 845 851 194.8
C 3 233 135139 689.47 845 851 194.8
C 2 114 15610 75.78 845 851 194.8
D 12 33 3662341 22112.38 704 689 165.6
D 1 52 1778272 10734.66 704 689 165.6
D 7 80 399338 2407.4 704 689 165.6

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