ASTROSAT CZTI

Data Quality Report

Orbit 01408

Creation date: 2024-06-27T14:12:14.438773
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/AS1G04_003T01_9000000234_01408cztM0_level2.evt modeM0/AS1G04_003T01_9000000234_01408cztM0_level2_quad_clean.evt
Size (bytes)1,298,836,800107,939,520
Size1.2 GB 102.9 MB
Events in quadrant A12,759,543673,599
Events in quadrant B9,682,826704,546
Events in quadrant C8,481,398695,017
Events in quadrant D7,927,878685,590

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0430542
B0339371
C0304801
D0287811

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73324095.578287%
B7332430.586470%
C733230.040917%
D733270.095472%

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 7347 7333 2173 2173 29.58% 29.63%
B 7347 7333 573 573 7.80% 7.81%
C 7347 7333 170 170 2.31% 2.32%
D 7347 7333 189 189 2.57% 2.58%

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 15 127 4071847 7515.42 2218 2235 541.5
A 12 243 99127 178.93 2218 2235 541.5
A 15 233 72254 129.3 2218 2235 541.5
B 8 4 484210 863.51 2334 2347 558.0
B 6 53 113019 198.33 2334 2347 558.0
B 12 52 105775 185.35 2334 2347 558.0
C 15 241 278842 474.9 2086 2153 582.6
C 3 111 25804 40.59 2086 2153 582.6
C 3 79 23875 37.28 2086 2153 582.6
D 13 169 155820 243.6 2029 2098 631.1
D 9 66 82687 127.71 2029 2098 631.1
D 13 205 75535 116.37 2029 2098 631.1

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