ASTROSAT CZTI

Data Quality Report

Orbit 34153

Creation date: 2024-06-27T20:57:11.106893
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/AS1A11_054T07_9000004878_34153cztM0_level2.evt modeM0/AS1A11_054T07_9000004878_34153cztM0_level2_quad_clean.evt
Size (bytes)567,371,52064,866,240
Size541.1 MB 61.9 MB
Events in quadrant A2,770,392396,135
Events in quadrant B6,529,967384,300
Events in quadrant C3,327,138389,730
Events in quadrant D4,146,713371,994

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121173
B0234122
C0132872
D0164952

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A603270.116048%
B603299816.545093%
C6032841.392573%
D6032560.928382%

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 7344 6033 1 1 0.01% 0.02%
B 7344 6033 736 736 10.02% 12.20%
C 7344 6033 65 65 0.89% 1.08%
D 7344 6033 31 31 0.42% 0.51%

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 17712 117.8 710 695 144.5
A 13 254 10490 67.81 710 695 144.5
A 3 137 7298 45.71 710 695 144.5
B 5 31 1591375 12179.83 678 661 130.6
B 5 15 1157705 8859.29 678 661 130.6
B 5 14 406217 3105.27 678 661 130.6
C 0 10 300339 1865.85 684 689 160.6
C 15 214 256144 1590.66 684 689 160.6
C 15 159 45454 278.74 684 689 160.6
D 8 195 983410 5807.79 686 665 169.2
D 10 118 202298 1191.6 686 665 169.2
D 13 249 107390 630.72 686 665 169.2

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