ASTROSAT CZTI

Data Quality Report

Orbit 29379

Creation date: 2024-06-27T20:03:39.168148
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/AS1T03_280T01_9000004222_29379cztM0_level2.evt modeM0/AS1T03_280T01_9000004222_29379cztM0_level2_quad_clean.evt
Size (bytes)67,032,00012,473,280
Size63.9 MB 11.9 MB
Events in quadrant A280,43486,113
Events in quadrant B291,43488,123
Events in quadrant C321,55883,206
Events in quadrant D1,092,09069,524

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012160
B012190
C012840
D036662

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60800.000000%
B60810.164474%
C60820.328947%
D60720233.278418%

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 608 608 0 0 0.00% 0.00%
B 608 608 0 0 0.00% 0.00%
C 608 608 0 0 0.00% 0.00%
D 607 607 228 228 37.56% 37.56%

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 1181 65.94 72 71 16.8
A 3 137 648 34.28 72 71 16.8
A 0 226 571 29.7 72 71 16.8
B 12 111 1768 103.52 74 72 16.4
B 14 111 1414 81.92 74 72 16.4
B 11 111 1382 79.96 74 72 16.4
C 3 233 21903 1138.05 72 72 19.2
C 14 238 12124 628.27 72 72 19.2
C 4 175 2068 104.05 72 72 19.2
D 12 33 719999 41460.15 64 62 17.4
D 1 52 102678 5909.51 64 62 17.4
D 8 195 11206 641.77 64 62 17.4

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