ASTROSAT CZTI

Data Quality Report

Orbit 41015

Creation date: 2024-06-27T22:23:18.393488
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_029T02_9000005590_41015cztM0_level2.fits modeM0/AS1A12_029T02_9000005590_41015cztM0_level2_quad_clean.evt
Size (bytes)353,707,20094,720,320
Size337.3 MB 90.3 MB
Events in quadrant A2,981,675629,650
Events in quadrant B2,637,195648,669
Events in quadrant C3,037,744621,276
Events in quadrant D3,987,443565,771

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126013
B0119522
C0127442
D0159952

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0330
C0330
D0330

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5766160.277489%
B576660.104058%
C57661081.873049%
D57661943.364551%

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 9083 5768 4 4 0.04% 0.07%
B 9083 5768 0 0 0.00% 0.00%
C 9083 5768 102 102 1.12% 1.77%
D 9083 5768 191 191 2.10% 3.31%

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 83 518125 4093.78 621 608 126.4
A 12 189 38752 301.74 621 608 126.4
A 2 79 10403 77.48 621 608 126.4
B 0 190 191696 1579.21 619 601 121.0
B 12 111 15440 122.63 619 601 121.0
B 11 111 14068 111.29 619 601 121.0
C 15 214 244934 1715.07 608 610 142.5
C 12 249 193679 1355.28 608 610 142.5
C 14 254 170209 1190.53 608 610 142.5
D 12 79 714691 4876.63 599 583 146.4
D 13 249 574079 3916.39 599 583 146.4
D 2 153 245341 1671.45 599 583 146.4

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