ASTROSAT CZTI

Data Quality Report

Orbit 24097

Creation date: 2024-06-27T19:02:04.801486
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/AS1T03_182T01_9000003560_24097cztM0_level2.evt modeM0/AS1T03_182T01_9000003560_24097cztM0_level2_quad_clean.evt
Size (bytes)884,278,080155,859,840
Size843.3 MB 148.6 MB
Events in quadrant A5,712,366989,818
Events in quadrant B6,105,688992,363
Events in quadrant C6,057,717962,680
Events in quadrant D8,089,291942,254

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02460
B02460
C02460
D02460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0246542
B0257272
C0248953
D0322192

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A12050560.464730%
B120511661.377479%
C120501100.912863%
D120503002.489627%

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 13210 12051 0 0 0.00% 0.00%
B 13211 12052 59 59 0.45% 0.49%
C 13210 12052 1 1 0.01% 0.01%
D 13210 12051 166 166 1.26% 1.38%

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 6 16 25110 79.74 1470 1438 296.9
A 13 254 21803 68.6 1470 1438 296.9
A 2 250 17233 53.21 1470 1438 296.9
B 0 245 154443 548.75 1459 1417 278.9
B 15 32 77116 271.46 1459 1417 278.9
B 5 172 53029 185.08 1459 1417 278.9
C 14 238 221503 662.22 1411 1420 332.3
C 7 247 220571 659.41 1411 1420 332.3
C 0 239 78242 231.15 1411 1420 332.3
D 12 218 956150 2760.04 1424 1382 345.9
D 8 195 651727 1880.01 1424 1382 345.9
D 11 176 576915 1663.75 1424 1382 345.9

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