ASTROSAT CZTI

Data Quality Report

Orbit 30948

Creation date: 2024-06-27T20:21:30.946339
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/AS1A10_058T10_9000004472_30948cztM0_level2.evt modeM0/AS1A10_058T10_9000004472_30948cztM0_level2_quad_clean.evt
Size (bytes)542,234,880117,567,360
Size517.1 MB 112.1 MB
Events in quadrant A3,294,676789,180
Events in quadrant B5,238,123802,938
Events in quadrant C3,590,035776,971
Events in quadrant D3,879,180759,130

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135322
B0195592
C0145682
D0154932

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6206310.499517%
B62061372.207541%
C62061782.868192%
D6206821.321302%

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 7561 6207 0 0 0.00% 0.00%
B 7561 6206 2 2 0.03% 0.03%
C 7561 6207 20 20 0.26% 0.32%
D 7561 6207 59 59 0.78% 0.95%

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 11 47 14114 78.92 849 836 168.3
A 13 254 10519 57.55 849 836 168.3
A 3 137 7763 41.17 849 836 168.3
B 6 159 1768681 11130.24 850 830 158.8
B 0 183 43500 268.65 850 830 158.8
B 15 33 40203 247.89 850 830 158.8
C 14 238 145461 746.22 833 843 193.8
C 0 10 91440 467.47 833 843 193.8
C 3 233 58917 299.66 833 843 193.8
D 15 47 308992 1564.71 837 819 197.0
D 8 195 261658 1324.38 837 819 197.0
D 2 250 96112 483.84 837 819 197.0

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