ASTROSAT CZTI

Data Quality Report

Orbit 39017

Creation date: 2024-06-27T21:59:24.555100
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/AS1C07_001T02_9000005426_39017cztM0_level2.fits modeM0/AS1C07_001T02_9000005426_39017cztM0_level2_quad_clean.evt
Size (bytes)181,229,76046,785,600
Size172.8 MB 44.6 MB
Events in quadrant A2,110,156311,916
Events in quadrant B1,346,273320,512
Events in quadrant C1,343,657307,171
Events in quadrant D1,692,885280,758

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A081392
B058041
C055881
D069701

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0560
B0560
C0560
D0560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2746782.840495%
B2746240.873999%
C274610.036417%
D2746792.876912%

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 4089 2747 38 38 0.93% 1.38%
B 4089 2746 9 9 0.22% 0.33%
C 4089 2747 0 0 0.00% 0.00%
D 4088 2746 64 64 1.57% 2.33%

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 6 10 304288 4655.99 316 309 65.3
A 12 16 248350 3799.2 316 309 65.3
A 10 83 217259 3322.98 316 309 65.3
B 5 172 46309 736.12 314 306 62.5
B 15 85 46258 735.3 314 306 62.5
B 0 230 10542 163.79 314 306 62.5
C 15 214 116631 1548.53 312 313 75.1
C 1 128 4040 49.62 312 313 75.1
C 13 61 1960 21.93 312 313 75.1
D 2 249 155364 2018.46 311 301 76.8
D 12 227 92908 1205.47 311 301 76.8
D 12 233 77419 1003.85 311 301 76.8

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