ASTROSAT CZTI

Data Quality Report

Orbit 11039

Creation date: 2024-06-27T16:07:19.260418
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/AS1A04_113T01_9000001604_11039cztM0_level2.evt modeM0/AS1A04_113T01_9000001604_11039cztM0_level2_quad_clean.evt
Size (bytes)130,176,00023,990,400
Size124.1 MB 22.9 MB
Events in quadrant A1,311,213151,651
Events in quadrant B993,070161,014
Events in quadrant C593,705164,794
Events in quadrant D956,189153,635

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0480326
B0380021
C026103
D0369810

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A125518014.342629%
B12581229.697933%
C1261181.427439%
D1259846.671962%

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 2172 1262 128 128 5.89% 10.14%
B 2172 1262 57 57 2.62% 4.52%
C 2172 1263 0 0 0.00% 0.00%
D 2172 1263 66 66 3.04% 5.23%

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 14 238 602717 18365.53 148 145 32.8
A 8 5 94042 2861.85 148 145 32.8
A 15 174 30303 919.17 148 145 32.8
B 4 239 373052 11814.86 153 149 31.6
B 0 219 4896 150.4 153 149 31.6
B 12 111 3409 103.29 153 149 31.6
C 12 4 1239 29.42 151 152 37.0
C 13 61 1107 25.85 151 152 37.0
C 5 207 455 8.2 151 152 37.0
D 14 34 205238 5548.66 147 141 37.0
D 11 129 83422 2253.07 147 141 37.0
D 1 52 82152 2218.71 147 141 37.0

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