ASTROSAT CZTI

Data Quality Report

Orbit 25560

Creation date: 2024-06-27T19:19:01.264717
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/AS1A09_043T02_9000003726_25560cztM0_level2.evt modeM0/AS1A09_043T02_9000003726_25560cztM0_level2_quad_clean.evt
Size (bytes)489,386,88075,412,800
Size466.7 MB 71.9 MB
Events in quadrant A3,407,477472,566
Events in quadrant B3,392,751484,435
Events in quadrant C3,364,173446,989
Events in quadrant D4,224,024434,645

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141710
B0138750
C0138000
D0168250

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6381460.720890%
B6381440.689547%
C6381681.065664%
D63811241.943269%

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 7581 6382 0 0 0.00% 0.00%
B 7581 6382 0 0 0.00% 0.00%
C 7581 6382 1 1 0.01% 0.02%
D 7581 6382 83 83 1.09% 1.30%

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 10 17 125481 728.64 851 835 171.1
A 13 254 10228 54.91 851 835 171.1
A 3 137 7414 38.46 851 835 171.1
B 0 219 20160 121.36 851 830 159.3
B 12 111 19083 114.6 851 830 159.3
B 3 112 18488 110.87 851 830 159.3
C 14 238 131277 693.85 804 811 188.0
C 3 233 66436 349.01 804 811 188.0
C 5 112 33185 172.17 804 811 188.0
D 1 52 588408 3028.02 802 778 194.1
D 8 195 375655 1931.72 802 778 194.1
D 2 244 144248 739.29 802 778 194.1

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