ASTROSAT CZTI

Data Quality Report

Orbit 25533

Creation date: 2024-06-27T19:18:43.619166
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/AS1A07_147T01_9000003722_25533cztM0_level2.evt modeM0/AS1A07_147T01_9000003722_25533cztM0_level2_quad_clean.evt
Size (bytes)495,339,84067,651,200
Size472.4 MB 64.5 MB
Events in quadrant A3,548,833414,817
Events in quadrant B3,593,558423,772
Events in quadrant C3,563,668387,636
Events in quadrant D3,865,105379,308

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142040
B0144100
C0143210
D0154690

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6341671.056616%
B6341811.277401%
C63411131.782053%
D6340420.662461%

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 7661 6342 0 0 0.00% 0.00%
B 7661 6342 0 0 0.00% 0.00%
C 7661 6342 0 0 0.00% 0.00%
D 7660 6341 3 3 0.04% 0.05%

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 6 16 17992 94.75 916 904 180.3
A 13 254 9063 45.24 916 904 180.3
A 0 226 7843 38.48 916 904 180.3
B 12 111 19832 111.87 914 897 169.3
B 11 111 18185 102.14 914 897 169.3
B 14 111 16756 93.7 914 897 169.3
C 14 238 141417 716.12 852 859 196.3
C 2 16 86151 434.55 852 859 196.3
C 3 233 15737 75.8 852 859 196.3
D 8 195 478398 2295.15 862 839 208.1
D 1 52 136823 653.54 862 839 208.1
D 2 234 21492 99.26 862 839 208.1

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