ASTROSAT CZTI

Data Quality Report

Orbit 29563

Creation date: 2024-06-27T20:05:31.737536
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/AS1C05_019T01_9000004264_29563cztM0_level2.evt modeM0/AS1C05_019T01_9000004264_29563cztM0_level2_quad_clean.evt
Size (bytes)553,916,160112,944,960
Size528.3 MB 107.7 MB
Events in quadrant A3,364,890747,111
Events in quadrant B3,439,792766,229
Events in quadrant C3,663,584721,115
Events in quadrant D5,807,705674,029

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150351
B0151621
C0156911
D0220471

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73511982.693511%
B73522243.046790%
C73525787.861806%
D735279410.799782%

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 7386 7352 0 0 0.00% 0.00%
B 7387 7353 1 1 0.01% 0.01%
C 7387 7353 0 0 0.00% 0.00%
D 7387 7353 597 597 8.08% 8.12%

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 13605 72.68 871 852 175.5
A 3 137 8942 46.11 871 852 175.5
A 0 226 7232 36.36 871 852 175.5
B 0 190 28397 166.03 866 841 166.0
B 12 111 21058 121.81 866 841 166.0
B 11 111 19163 110.39 866 841 166.0
C 14 238 260434 1369.71 816 820 189.5
C 14 254 174025 913.82 816 820 189.5
C 2 114 17187 86.35 816 820 189.5
D 13 104 1268064 6632.95 805 783 191.1
D 7 238 759245 3969.79 805 783 191.1
D 8 195 412342 2154.1 805 783 191.1

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