ASTROSAT CZTI

Data Quality Report

Orbit 29729

Creation date: 2024-06-27T20:07:11.803877
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_007T01_9000004276_29729cztM0_level2.evt modeM0/AS1A10_007T01_9000004276_29729cztM0_level2_quad_clean.evt
Size (bytes)722,894,40065,407,680
Size689.4 MB 62.4 MB
Events in quadrant A3,450,467389,925
Events in quadrant B5,505,817389,382
Events in quadrant C5,401,143376,336
Events in quadrant D7,093,496367,337

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145032
B0206922
C0204012
D0256602

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6554711.083308%
B65541492.273421%
C655484112.831858%
D65546359.688740%

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 7714 6554 0 0 0.00% 0.00%
B 7714 6554 8 8 0.10% 0.12%
C 7714 6554 315 315 4.08% 4.81%
D 7714 6554 543 543 7.04% 8.29%

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 12169 64.27 892 876 175.7
A 3 137 8471 43.22 892 876 175.7
A 0 226 7414 37.21 892 876 175.7
B 6 159 1878005 11241.24 879 858 167.0
B 0 229 125262 744.99 879 858 167.0
B 0 190 35810 209.31 879 858 167.0
C 3 233 1806831 9452.74 823 832 191.1
C 10 22 154851 806.15 823 832 191.1
C 14 238 147658 768.5 823 832 191.1
D 8 195 2460932 12503.39 837 817 196.8
D 7 80 482289 2447.05 837 817 196.8
D 7 238 371761 1885.3 837 817 196.8

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