ASTROSAT CZTI

Data Quality Report

Orbit 05350

Creation date: 2024-06-27T14:54:10.761279
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/AS1G05_152T01_9000000676_05350cztM0_level2.evt modeM0/AS1G05_152T01_9000000676_05350cztM0_level2_quad_clean.evt
Size (bytes)189,495,36038,848,320
Size180.7 MB 37.0 MB
Events in quadrant A1,200,684250,920
Events in quadrant B1,679,395237,216
Events in quadrant C1,163,325255,391
Events in quadrant D1,513,904243,431

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05991412
B078121057
C05681295
D06726563

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0564
B0562
C0564
D0562

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2636200.758725%
B25841706.578947%
C266910.037467%
D2644341.285930%

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 2815 2798 19 19 0.67% 0.68%
B 2815 2729 153 153 5.44% 5.61%
C 2815 2802 0 0 0.00% 0.00%
D 2815 2787 30 30 1.07% 1.08%

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 15 174 101569 1676.45 279 273 60.4
A 0 50 16482 268.26 279 273 60.4
A 15 234 5917 93.41 279 273 60.4
B 10 16 553821 10201.32 274 267 54.3
B 14 167 20442 371.8 274 267 54.3
B 15 204 13890 251.06 274 267 54.3
C 1 16 56017 843.23 279 280 66.1
C 8 128 6620 95.92 279 280 66.1
C 8 112 3228 44.6 279 280 66.1
D 2 63 203727 3022.97 269 260 67.3
D 2 16 115945 1718.77 269 260 67.3
D 12 110 46554 687.8 269 260 67.3

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