ASTROSAT CZTI

Data Quality Report

Orbit 08102

Creation date: 2024-06-27T15:27:57.299334
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/AS1A02_055T01_9000001114_08102cztM0_level2.evt modeM0/AS1A02_055T01_9000001114_08102cztM0_level2_quad_clean.evt
Size (bytes)464,281,92073,080,000
Size442.8 MB 69.7 MB
Events in quadrant A3,119,100436,128
Events in quadrant B3,255,823445,088
Events in quadrant C3,124,902446,838
Events in quadrant D4,111,719423,728

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136282
B0138301
C0136411
D0167061

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6610881.331316%
B6610921.391831%
C6610721.089259%
D66103124.720121%

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 7630 6610 0 0 0.00% 0.00%
B 7630 6610 0 0 0.00% 0.00%
C 7630 6610 0 0 0.00% 0.00%
D 7630 6610 227 227 2.98% 3.43%

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 0 226 7498 40.79 809 793 164.4
A 12 194 7276 39.44 809 793 164.4
A 0 128 3074 13.88 809 793 164.4
B 0 214 40775 257.78 811 793 155.1
B 11 51 37191 234.67 811 793 155.1
B 12 111 16364 100.39 811 793 155.1
C 1 16 69261 379.74 783 784 180.3
C 13 61 6040 29.15 783 784 180.3
C 14 67 2056 7.05 783 784 180.3
D 1 52 868676 4492.27 772 752 193.2
D 12 227 180796 931.89 772 752 193.2
D 5 233 104450 536.73 772 752 193.2

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