ASTROSAT CZTI

Data Quality Report

Orbit 30304

Creation date: 2024-06-27T20:13:26.546457
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_071T17_9000004352_30304cztM0_level2.evt modeM0/AS1A10_071T17_9000004352_30304cztM0_level2_quad_clean.evt
Size (bytes)1,037,934,720160,505,280
Size989.9 MB 153.1 MB
Events in quadrant A6,372,7281,017,005
Events in quadrant B10,122,0751,014,596
Events in quadrant C6,748,812947,303
Events in quadrant D7,290,213962,017

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0273454
B0402733
C0282323
D0297263

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02740
B02740
C02740
D02740

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A133072892.171789%
B133084143.110911%
C133088496.379621%
D133083072.306883%

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 14732 13308 0 0 0.00% 0.00%
B 14733 13309 3 3 0.02% 0.02%
C 14733 13309 2 2 0.01% 0.02%
D 14733 13309 101 101 0.69% 0.76%

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 8 192 33797 97.03 1642 1605 331.8
A 13 254 23304 65.4 1642 1605 331.8
A 3 137 17798 48.81 1642 1605 331.8
B 6 159 3640738 11562.67 1612 1567 314.7
B 6 36 113351 355.17 1612 1567 314.7
B 12 111 40540 123.83 1612 1567 314.7
C 14 238 369416 1013.73 1541 1551 362.9
C 14 254 185074 505.74 1541 1551 362.9
C 3 233 93222 252.62 1541 1551 362.9
D 8 195 442915 1101.31 1579 1543 400.8
D 13 104 389708 968.55 1579 1543 400.8
D 1 52 150487 371.64 1579 1543 400.8

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