ASTROSAT CZTI

Data Quality Report

Orbit 48049

Creation date: 2024-09-04T21:41:56.293191
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_037T05_9000006392_48049cztM0_level2.fits modeM0/AS1A13_037T05_9000006392_48049cztM0_level2_quad_clean.evt
Size (bytes)1,441,872,000312,635,520
Size1.3 GB 298.2 MB
Events in quadrant A21,019,2011,980,058
Events in quadrant B9,908,3552,156,558
Events in quadrant C9,538,3502,083,686
Events in quadrant D11,351,5641,858,258

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0787062
B0433602
C0430882
D0478762

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04080
B04080
C04080
D04080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2013614086.992451%
B201375162.562447%
C201373681.827482%
D201376463.208025%

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 21066 20139 400 400 1.90% 1.99%
B 21067 20140 49 49 0.23% 0.24%
C 21067 20140 96 96 0.46% 0.48%
D 21067 20140 273 273 1.30% 1.36%

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 11169668 23968.08 2240 2192 465.9
A 14 248 1133933 2428.99 2240 2192 465.9
A 13 254 35454 71.39 2240 2192 465.9
B 7 221 298592 653.39 2283 2213 453.6
B 0 200 260233 568.82 2283 2213 453.6
B 5 255 151407 328.91 2283 2213 453.6
C 12 2 411326 770.79 2254 2265 530.7
C 15 208 173544 322.74 2254 2265 530.7
C 14 254 85745 157.3 2254 2265 530.7
D 2 249 862484 1527.27 2235 2155 563.3
D 11 224 598056 1057.85 2235 2155 563.3
D 2 165 331325 584.35 2235 2155 563.3

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