ASTROSAT CZTI

Data Quality Report

Orbit 42029

Creation date: 2024-06-27T22:35:57.283453
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/AS1A12_037T01_9000005736_42029cztM0_level2.fits modeM0/AS1A12_037T01_9000005736_42029cztM0_level2_quad_clean.evt
Size (bytes)333,288,00090,489,600
Size317.8 MB 86.3 MB
Events in quadrant A3,992,772583,454
Events in quadrant B2,713,166624,721
Events in quadrant C2,569,598596,036
Events in quadrant D2,629,159547,607

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152993
B0117292
C0111582
D0118642

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0250
D0270

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A55512925.260313%
B5551200.360295%
C555150.090074%
D5551200.360295%

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 7104 5552 225 225 3.17% 4.05%
B 7104 5552 11 11 0.15% 0.20%
C 7104 5552 0 0 0.00% 0.00%
D 7104 5552 25 25 0.35% 0.45%

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 15 223 801937 6379.33 603 589 125.6
A 10 83 565948 4500.68 603 589 125.6
A 15 222 139700 1107.43 603 589 125.6
B 0 190 133059 1109.41 609 592 119.4
B 5 255 113483 945.46 609 592 119.4
B 3 112 30704 252.19 609 592 119.4
C 15 214 233851 1653.82 597 599 141.0
C 15 111 7131 46.31 597 599 141.0
C 13 61 3952 23.77 597 599 141.0
D 13 249 93549 626.24 599 580 148.5
D 12 6 62405 416.45 599 580 148.5
D 12 218 58020 386.91 599 580 148.5

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