ASTROSAT CZTI

Data Quality Report

Orbit 59114

Creation date: 2026-08-31T19:07:45.807381
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/AS1A14_004T02_9000006600_59114cztM0_level2.fits modeM0/AS1A14_004T02_9000006600_59114cztM0_level2_quad_clean.evt
Size (bytes)906,073,92096,053,760
Size864.1 MB 91.6 MB
Events in quadrant A4,624,695764,603
Events in quadrant B4,200,581824,205
Events in quadrant C6,805,637722,017
Events in quadrant D17,281,31135,948

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0195060
B0180090
C0258290
D0569000

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A80741561.932128%
B80751271.572755%
C80752633.256966%
D8075771395.517028%

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 8074 8074 56 56 0.69% 0.69%
B 8074 8074 63 63 0.78% 0.78%
C 8074 8074 182 182 2.25% 2.25%
D 8074 8074 5106 5106 63.24% 63.24%

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 14 453729 2055.3 894 870 220.3
A 3 95 408720 1851.03 894 870 220.3
A 10 251 239495 1083.0 894 870 220.3
B 4 236 346750 1822.1 887 856 189.8
B 6 255 93553 488.31 887 856 189.8
B 5 185 79664 415.15 887 856 189.8
C 3 233 2796561 11842.64 859 850 236.1
C 12 252 327563 1383.96 859 850 236.1
C 5 250 156377 658.81 859 850 236.1
D 12 1 16109726 451680.49 121 116 35.7
D 12 110 609534 17086.83 121 116 35.7
D 2 249 14830 412.55 121 116 35.7

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

TCT plots

Parameter TCT0 TCT_healed
Tct