ASTROSAT CZTI

Data Quality Report

Orbit 47325

Creation date: 2024-07-01T11:57:41.483452
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_9000006318_47325cztM0_level2.fits modeM0/AS1A13_037T01_9000006318_47325cztM0_level2_quad_clean.evt
Size (bytes)293,189,76059,025,600
Size279.6 MB 56.3 MB
Events in quadrant A3,738,171406,961
Events in quadrant B1,685,121422,162
Events in quadrant C3,069,334334,740
Events in quadrant D2,093,998381,597

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135461
B073811
C0115301
D086741

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0700
B0700
C0700
D0700

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A34102457.184751%
B3410471.378299%
C340955916.397771%
D34091073.138750%

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 4255 3411 44 44 1.03% 1.29%
B 4255 3411 0 0 0.00% 0.00%
C 4254 3410 456 456 10.72% 13.37%
D 4254 3409 52 52 1.22% 1.53%

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 1871547 21657.52 410 401 86.4
A 9 191 228187 2636.5 410 401 86.4
A 15 235 49524 568.57 410 401 86.4
B 0 198 27618 329.49 409 398 82.6
B 5 171 14070 165.49 409 398 82.6
B 12 111 10400 121.07 409 398 82.6
C 12 2 1613399 18343.52 367 369 87.9
C 3 233 21157 236.4 367 369 87.9
C 13 61 2357 22.61 367 369 87.9
D 12 128 145208 1407.45 405 392 102.9
D 10 204 133124 1290.01 405 392 102.9
D 7 38 96272 931.85 405 392 102.9

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