ASTROSAT CZTI

Data Quality Report

Orbit 47071

Creation date: 2024-06-27T23:31:23.149696
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/AS1C09_005T01_9000006296_47071cztM0_level2.fits modeM0/AS1C09_005T01_9000006296_47071cztM0_level2_quad_clean.evt
Size (bytes)2,404,569,600532,224,000
Size2.2 GB 507.6 MB
Events in quadrant A30,987,6383,531,764
Events in quadrant B21,145,1613,611,886
Events in quadrant C14,555,4273,571,946
Events in quadrant D19,840,5223,188,930

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0640
B0640
C0640
D0640

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06560
B06560
C06560
D06560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A011350210
B0843546
C0669466
D0815426

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A321609863.065920%
B3216212333.833717%
C321623060.951433%
D3216214864.620359%

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 38681 32167 95 95 0.25% 0.30%
B 38682 32168 522 522 1.35% 1.62%
C 38682 32168 93 93 0.24% 0.29%
D 38682 32168 1088 1088 2.81% 3.38%

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 16853796 23012.56 3591 3511 732.2
A 13 248 86714 113.63 3591 3511 732.2
A 13 254 55551 71.07 3591 3511 732.2
B 3 112 5801524 8526.3 3540 3424 680.0
B 5 172 313209 455.55 3540 3424 680.0
B 5 255 290087 421.55 3540 3424 680.0
C 12 249 443112 534.79 3556 3570 821.9
C 14 254 170076 202.59 3556 3570 821.9
C 12 250 45993 51.62 3556 3570 821.9
D 1 52 2163841 2477.51 3527 3419 872.0
D 13 249 1178697 1347.77 3527 3419 872.0
D 2 249 1128042 1289.68 3527 3419 872.0

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