ASTROSAT CZTI

Data Quality Report

Orbit 06670

Creation date: 2024-06-27T15:10:05.675755
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_170T03_9000000910_06670cztM0_level2.evt modeM0/AS1A02_170T03_9000000910_06670cztM0_level2_quad_clean.evt
Size (bytes)421,629,12044,510,400
Size402.1 MB 42.4 MB
Events in quadrant A2,621,492320,648
Events in quadrant B2,263,320318,000
Events in quadrant C2,256,411315,513
Events in quadrant D5,396,466151,386

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0101182
B091801
C091361
D0184291

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0700
B0700
C0700
D0700

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A34022677.848325%
B34021614.732510%
C34021554.556143%
D3402170049.970606%

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 4552 3402 204 204 4.48% 6.00%
B 4552 3403 74 74 1.63% 2.17%
C 4552 3403 106 106 2.33% 3.11%
D 4552 3402 1351 1351 29.68% 39.71%

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 3 1 9483 53.33 667 655 165.5
A 4 2 7199 39.54 667 655 165.5
A 8 15 6924 37.87 667 655 165.5
B 4 81 21755 163.09 572 563 129.9
B 0 214 19149 143.03 572 563 129.9
B 4 48 12353 90.73 572 563 129.9
C 1 16 5738 31.55 575 575 163.6
C 13 61 4024 21.08 575 575 163.6
C 9 16 2052 9.03 575 575 163.6
D 2 33 2846825 17432.33 504 488 163.3
D 2 63 391531 2394.93 504 488 163.3
D 14 34 85046 517.87 504 488 163.3

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