ASTROSAT CZTI

Data Quality Report

Orbit 29065

Creation date: 2024-06-27T19:59:52.851682
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_097T04_9000004170_29065cztM0_level2.evt modeM0/AS1A10_097T04_9000004170_29065cztM0_level2_quad_clean.evt
Size (bytes)558,809,280120,769,920
Size532.9 MB 115.2 MB
Events in quadrant A3,701,839817,176
Events in quadrant B3,854,512843,705
Events in quadrant C3,729,962784,275
Events in quadrant D5,173,020735,433

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152952
B0157812
C0153822
D0200062

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68531171.707281%
B68541932.815874%
C68541612.348993%
D68541892.757514%

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 9472 6852 0 0 0.00% 0.00%
B 9473 6853 38 38 0.40% 0.55%
C 9473 6853 0 0 0.00% 0.00%
D 9473 6853 154 154 1.63% 2.25%

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 13 254 11782 57.39 956 941 188.9
A 6 16 9643 46.06 956 941 188.9
A 3 137 9001 42.66 956 941 188.9
B 4 80 109591 612.64 955 934 177.4
B 12 111 21691 117.03 955 934 177.4
B 11 111 19531 104.85 955 934 177.4
C 14 238 149282 701.93 910 917 211.4
C 2 114 16167 72.15 910 917 211.4
C 2 16 8584 36.27 910 917 211.4
D 7 80 846554 4025.16 896 872 210.1
D 1 52 588867 2798.66 896 872 210.1
D 8 195 354511 1683.2 896 872 210.1

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