ASTROSAT CZTI

Data Quality Report

Orbit 05291

Creation date: 2024-06-27T14:53:33.127474
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_240T02_9000000670_05291cztM0_level2.evt modeM0/AS1G05_240T02_9000000670_05291cztM0_level2_quad_clean.evt
Size (bytes)188,242,56019,658,880
Size179.5 MB 18.7 MB
Events in quadrant A1,542,146110,975
Events in quadrant B961,162118,584
Events in quadrant C928,860114,556
Events in quadrant D2,124,42798,810

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0420
B0420
C0420
D0420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A059731
B043010
C042700
D077380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A20901085.167464%
B209040.191388%
C209050.239234%
D209038618.468900%

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 2090 2090 91 91 4.35% 4.35%
B 2090 2090 0 0 0.00% 0.00%
C 2090 2090 0 0 0.00% 0.00%
D 2090 2090 303 303 14.50% 14.50%

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 13 251 625634 12458.34 237 231 50.2
A 12 194 2356 42.33 237 231 50.2
A 0 226 2314 41.49 237 231 50.2
B 15 204 6123 119.51 243 238 49.2
B 15 54 5213 101.03 243 238 49.2
B 12 111 4511 86.78 243 238 49.2
C 13 61 1882 28.44 238 238 57.8
C 14 67 632 6.81 238 238 57.8
C 3 202 593 6.13 238 238 57.8
D 11 145 1237944 22432.11 217 210 55.2
D 2 136 33774 608.3 217 210 55.2
D 8 195 16884 302.19 217 210 55.2

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