ASTROSAT CZTI

Data Quality Report

Orbit 13542

Creation date: 2024-06-27T16:42:20.971769
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/AS1T02_038T01_9000001994_13542cztM0_level2.evt modeM0/AS1T02_038T01_9000001994_13542cztM0_level2_quad_clean.evt
Size (bytes)339,266,88097,436,160
Size323.6 MB 92.9 MB
Events in quadrant A2,230,482677,796
Events in quadrant B2,391,842668,975
Events in quadrant C2,535,379668,698
Events in quadrant D2,815,460624,180

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090871
B095890
C0102010
D0110740

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0880
B0880
C0880
D0880

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A442820.045167%
B4428521.174345%
C442820.045167%
D44281643.703704%

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 4429 4429 0 0 0.00% 0.00%
B 4429 4429 34 34 0.77% 0.77%
C 4429 4429 0 0 0.00% 0.00%
D 4429 4429 131 131 2.96% 2.96%

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 1 162 6983 47.62 578 564 134.8
A 0 226 4925 32.35 578 564 134.8
A 12 194 4216 27.09 578 564 134.8
B 3 64 75232 615.19 572 561 121.4
B 4 142 36456 295.73 572 561 121.4
B 4 173 20311 162.71 572 561 121.4
C 3 233 344457 2455.59 562 568 140.0
C 13 61 4054 24.89 562 568 140.0
C 14 220 1613 7.46 562 568 140.0
D 13 122 543047 3755.48 546 529 144.5
D 2 14 61306 420.72 546 529 144.5
D 5 222 44030 301.13 546 529 144.5

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