ASTROSAT CZTI

Data Quality Report

Orbit 29948

Creation date: 2024-06-27T20:09:05.746004
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_058T01_9000004298_29948cztM0_level2.evt modeM0/AS1A10_058T01_9000004298_29948cztM0_level2_quad_clean.evt
Size (bytes)490,069,44086,376,960
Size467.4 MB 82.4 MB
Events in quadrant A2,996,849577,295
Events in quadrant B4,652,762568,751
Events in quadrant C3,358,138541,070
Events in quadrant D3,457,824540,009

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121631
B0174541
C0134171
D0138541

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5552701.260807%
B55531101.980911%
C55531612.899334%
D5552741.332853%

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 6862 5553 1 1 0.01% 0.02%
B 6863 5554 10 10 0.15% 0.18%
C 6863 5554 0 0 0.00% 0.00%
D 6862 5553 18 18 0.26% 0.32%

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 11246 68.66 773 760 152.7
A 13 254 10566 64.2 773 760 152.7
A 0 226 6694 38.85 773 760 152.7
B 6 159 1588256 11276.44 748 731 140.8
B 3 64 79480 559.37 748 731 140.8
B 3 209 41955 292.82 748 731 140.8
C 3 233 363247 2195.92 723 729 165.1
C 14 238 137571 828.91 723 729 165.1
C 14 254 25080 147.5 723 729 165.1
D 8 195 369473 2138.04 748 733 172.5
D 7 80 64215 368.08 748 733 172.5
D 2 250 47139 269.07 748 733 172.5

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