ASTROSAT CZTI

Data Quality Report

Orbit 20240801_T05_216T01_9000006356_level2

Creation date: 2024-08-03T14:10:18.661330
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/AS1T05_216T01_9000006356cztM0_level2.fits modeM0/AS1T05_216T01_9000006356cztM0_level2_quad_clean.evt
Size (bytes)785,272,320787,000,320
Size748.9 MB 750.5 MB
Events in quadrant A4,624,4104,837,487
Events in quadrant B4,557,0384,855,164
Events in quadrant C4,776,6924,782,109
Events in quadrant D3,526,5643,076,141

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A018580
B018580
C018580
D018580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03481520
B02162650
C01933290
D03818150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A9166241294.504593%
B9166835403.861762%
C916669611.048371%
D916632445226.675976%

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 103817 91654 0 0 0.00% 0.00%
B 103818 91636 0 0 0.00% 0.00%
C 103818 91644 0 0 0.00% 0.00%
D 103817 91303 0 0 0.00% 0.00%

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 7 110 3779 8.67 1207 1127 305.9
A 14 95 3558 7.95 1207 1127 305.9
A 0 29 3439 7.56 1207 1127 305.9
B 2 9 4386 13.63 1203 1142 237.9
B 2 8 3518 9.99 1203 1142 237.9
B 3 17 3230 8.78 1203 1142 237.9
C 3 202 3655 7.53 1263 1169 330.3
C 1 81 3571 7.27 1263 1169 330.3
C 3 203 3509 7.08 1263 1169 330.3
D 4 12 2590 5.87 1014 914 285.6
D 4 16 2581 5.84 1014 914 285.6
D 15 47 2553 5.74 1014 914 285.6

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