ASTROSAT CZTI

Data Quality Report

Orbit 16648

Creation date: 2024-06-27T17:25:30.418020
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/AS1A05_002T10_9000002460_16648cztM0_level2.evt modeM0/AS1A05_002T10_9000002460_16648cztM0_level2_quad_clean.evt
Size (bytes)32,276,1609,377,280
Size30.8 MB 8.9 MB
Events in quadrant A224,37861,277
Events in quadrant B217,69262,680
Events in quadrant C218,81358,977
Events in quadrant D278,32856,953

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010671
B010230
C010210
D012150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A51030.588235%
B51000.000000%
C51000.000000%
D510112.156863%

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 511 511 2 2 0.39% 0.39%
B 511 511 0 0 0.00% 0.00%
C 511 511 0 0 0.00% 0.00%
D 511 511 16 16 3.13% 3.13%

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 9 143 19162 1502.54 53 51 12.7
A 0 226 433 30.03 53 51 12.7
A 12 194 381 25.95 53 51 12.7
B 0 214 2277 177.42 54 52 12.5
B 0 229 1935 150.15 54 52 12.5
B 3 209 1731 133.88 54 52 12.5
C 3 233 7773 551.92 52 52 14.0
C 14 238 7728 548.7 52 52 14.0
C 13 61 335 20.23 52 52 14.0
D 1 52 70348 4941.45 50 48 14.2
D 5 222 14662 1027.23 50 48 14.2
D 8 195 2244 154.36 50 48 14.2

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