ASTROSAT CZTI

Data Quality Report

Orbit 44010

Creation date: 2024-06-27T22:58:14.351331
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/AS1A13_037T01_9000005930_44010cztM0_level2.fits modeM0/AS1A13_037T01_9000005930_44010cztM0_level2_quad_clean.evt
Size (bytes)448,032,960115,833,600
Size427.3 MB 110.5 MB
Events in quadrant A5,116,806753,516
Events in quadrant B3,304,467819,818
Events in quadrant C3,705,455778,754
Events in quadrant D3,942,239692,712

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0198592
B0141243
C0152402
D0164042

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66393355.045941%
B6638420.632721%
C6638370.557397%
D66381161.747514%

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 7879 6640 180 180 2.28% 2.71%
B 7878 6639 5 5 0.06% 0.08%
C 7878 6639 14 14 0.18% 0.21%
D 7878 6639 83 83 1.05% 1.25%

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 10 83 1236157 7989.35 759 743 154.6
A 14 238 852438 5507.86 759 743 154.6
A 7 3 43520 276.64 759 743 154.6
B 0 213 81261 522.6 781 756 154.0
B 0 155 49425 315.94 781 756 154.0
B 0 245 37821 240.61 781 756 154.0
C 3 233 441407 2435.53 766 772 180.9
C 14 254 270667 1491.8 766 772 180.9
C 13 61 5121 24.04 766 772 180.9
D 1 52 634496 3312.54 754 729 191.3
D 13 171 102075 529.71 754 729 191.3
D 13 249 76581 396.46 754 729 191.3

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