ASTROSAT CZTI

Data Quality Report

Orbit 30006

Creation date: 2024-06-27T20:09:47.405735
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_071T01_9000004310_30006cztM0_level2.evt modeM0/AS1A10_071T01_9000004310_30006cztM0_level2_quad_clean.evt
Size (bytes)630,339,84067,250,880
Size601.1 MB 64.1 MB
Events in quadrant A3,588,776411,432
Events in quadrant B7,381,919406,604
Events in quadrant C3,603,393390,728
Events in quadrant D4,090,666388,138

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143612
B0262767
C0145082
D0159522

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6292991.573427%
B629171811.413130%
C62911392.209506%
D62912393.799078%

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 7567 6293 1 1 0.01% 0.02%
B 7566 6292 195 195 2.58% 3.10%
C 7566 6292 0 0 0.00% 0.00%
D 7566 6292 176 176 2.33% 2.80%

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 8 192 31462 168.16 919 903 181.7
A 13 254 11183 56.57 919 903 181.7
A 3 1 8895 43.98 919 903 181.7
B 6 36 2230674 13436.14 887 868 166.0
B 6 159 1648811 9930.01 887 868 166.0
B 12 111 19636 113.09 887 868 166.0
C 14 238 143897 718.53 858 866 199.1
C 3 233 99637 496.19 858 866 199.1
C 2 114 14714 69.57 858 866 199.1
D 11 135 421467 2077.79 857 840 202.4
D 7 80 277751 1367.87 857 840 202.4
D 8 195 80568 393.84 857 840 202.4

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