ASTROSAT CZTI

Data Quality Report

Orbit 08310

Creation date: 2024-06-27T15:30:49.294259
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/AS1A03_093T01_9000001156_08310cztM0_level2.evt modeM0/AS1A03_093T01_9000001156_08310cztM0_level2_quad_clean.evt
Size (bytes)189,558,72025,479,360
Size180.8 MB 24.3 MB
Events in quadrant A1,623,912146,692
Events in quadrant B1,328,574150,709
Events in quadrant C1,305,825147,992
Events in quadrant D1,308,622144,225

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A065072
B054281
C054581
D055011

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0540
B0540
C0540
D0540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A25221164.599524%
B2522893.528945%
C2522712.815226%
D2522642.537669%

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 3437 2523 0 0 0.00% 0.00%
B 3437 2522 1 1 0.03% 0.04%
C 3437 2523 14 14 0.41% 0.55%
D 3437 2523 4 4 0.12% 0.16%

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 0 23 207226 2981.76 329 321 69.4
A 14 111 114802 1649.82 329 321 69.4
A 0 226 16835 237.99 329 321 69.4
B 0 214 29409 438.34 332 324 66.4
B 12 111 7222 103.96 332 324 66.4
B 11 111 5810 82.68 332 324 66.4
C 9 54 49030 638.18 321 322 76.3
C 13 61 2425 27.55 321 322 76.3
C 9 68 1142 10.74 321 322 76.3
D 13 169 30053 367.36 321 312 81.0
D 12 221 18286 222.01 321 312 81.0
D 2 136 14961 180.94 321 312 81.0

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