ASTROSAT CZTI

Data Quality Report

Orbit 07434

Creation date: 2024-06-27T15:19:40.836855
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_150T04_9000001022_07434cztM0_level2.evt modeM0/AS1A02_150T04_9000001022_07434cztM0_level2_quad_clean.evt
Size (bytes)369,584,64064,278,720
Size352.5 MB 61.3 MB
Events in quadrant A2,315,492395,994
Events in quadrant B2,441,009406,440
Events in quadrant C3,523,900402,461
Events in quadrant D2,569,817388,369

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0105293
B0107012
C0141682
D0113192

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A50341332.642034%
B50341723.416766%
C50341102.185141%
D50341342.661899%

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 5169 5036 0 0 0.00% 0.00%
B 5169 5036 0 0 0.00% 0.00%
C 5169 5036 2 2 0.04% 0.04%
D 5169 5036 23 23 0.44% 0.46%

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 15 239 10057 76.27 596 582 124.2
A 0 226 5856 42.45 596 582 124.2
A 12 194 5270 37.74 596 582 124.2
B 0 214 69057 578.47 602 587 118.4
B 4 81 22851 188.1 602 587 118.4
B 12 111 12448 100.21 602 587 118.4
C 9 68 1216181 8763.99 580 583 138.7
C 1 16 20596 144.29 580 583 138.7
C 8 128 13110 90.31 580 583 138.7
D 2 14 132074 911.58 581 562 144.3
D 12 233 66850 459.48 581 562 144.3
D 13 169 39845 272.29 581 562 144.3

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