ASTROSAT CZTI

Data Quality Report

Orbit 04732

Creation date: 2024-06-27T14:46:10.111103
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/AS1G05_192T01_9000000594_04732cztM0_level2.evt modeM0/AS1G05_192T01_9000000594_04732cztM0_level2_quad_clean.evt
Size (bytes)775,045,44067,032,000
Size739.1 MB 63.9 MB
Events in quadrant A2,752,413506,013
Events in quadrant B3,056,231513,425
Events in quadrant C11,767,014147,212
Events in quadrant D5,501,271452,848

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121592
B0130351
C0390551
D0203121

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5843230.393633%
B5843560.958412%
C5843426973.061783%
D5843107818.449427%

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 7138 5844 0 0 0.00% 0.00%
B 7138 5844 16 16 0.22% 0.27%
C 7138 5844 3555 3555 49.80% 60.83%
D 7138 5844 883 883 12.37% 15.11%

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 0 118 65763 464.96 693 680 140.0
A 0 226 13155 89.12 693 680 140.0
A 12 194 6909 44.5 693 680 140.0
B 14 167 130159 984.25 702 686 131.5
B 10 16 88906 670.64 702 686 131.5
B 15 204 58095 436.42 702 686 131.5
C 14 48 10494833 140319.02 321 322 74.8
C 12 4 19630 258.16 321 322 74.8
C 13 61 2532 29.55 321 322 74.8
D 13 53 1189488 7848.25 623 603 151.5
D 13 235 1016497 6706.28 623 603 151.5
D 2 63 641503 4230.81 623 603 151.5

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