ASTROSAT CZTI

Data Quality Report

Orbit 45323

Creation date: 2024-06-27T23:12:19.517010
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/AS1A05_166T01_9000006070_45323cztM0_level2.fits modeM0/AS1A05_166T01_9000006070_45323cztM0_level2_quad_clean.evt
Size (bytes)2,446,629,120494,187,840
Size2.3 GB 471.3 MB
Events in quadrant A26,672,5903,310,893
Events in quadrant B19,195,3803,329,090
Events in quadrant C16,058,5163,312,470
Events in quadrant D26,184,8732,822,345

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06400
B06400
C06400
D06400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0996492
B0789042
C0707989
D0997402

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A318207532.366436%
B3182016675.238843%
C318176682.099507%
D3182029249.189189%

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 32875 31820 42 42 0.13% 0.13%
B 32875 31820 811 811 2.47% 2.55%
C 32875 31818 361 361 1.10% 1.13%
D 32875 31820 2393 2393 7.28% 7.52%

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 12535156 17192.51 3517 3438 728.9
A 13 248 155324 208.37 3517 3438 728.9
A 10 248 124234 165.72 3517 3438 728.9
B 4 171 2553506 3750.74 3479 3375 679.9
B 4 170 848858 1243.54 3479 3375 679.9
B 3 112 467607 682.79 3479 3375 679.9
C 14 254 1799438 2212.04 3464 3483 811.9
C 3 233 284723 346.4 3464 3483 811.9
C 12 2 254209 308.81 3464 3483 811.9
D 13 249 4949704 5902.34 3347 3239 838.1
D 1 52 4030570 4805.59 3347 3239 838.1
D 13 29 705061 837.44 3347 3239 838.1

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