ASTROSAT CZTI

Data Quality Report

Orbit 53232

Creation date: 2025-07-31T22:47:09.531835
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/AS1C09_011T06_9000006490_53232cztM0_level2.fits modeM0/AS1C09_011T06_9000006490_53232cztM0_level2_quad_clean.evt
Size (bytes)2,448,472,320202,512,960
Size2.3 GB 193.1 MB
Events in quadrant A13,728,8941,608,713
Events in quadrant B37,823,222531,837
Events in quadrant C20,967,7071,318,299
Events in quadrant D16,682,7701,391,310

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03760
B03760
C03760
D03760

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0539014
B01249244
C0750824
D0624284

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1858115898.551746%
B185821380174.270800%
C18582352718.980734%
D18582193010.386395%

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 19791 18585 1137 1137 5.75% 6.12%
B 19791 18585 12162 12162 61.45% 65.44%
C 19792 18586 2985 2985 15.08% 16.06%
D 19792 18586 1670 1670 8.44% 8.99%

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 62 2711950 5765.99 1890 1838 470.0
A 0 8 1561269 3317.82 1890 1838 470.0
A 14 254 839136 1781.42 1890 1838 470.0
B 12 33 29326514 119781.37 1152 1111 244.8
B 2 249 1098552 4482.56 1152 1111 244.8
B 10 254 856606 3494.32 1152 1111 244.8
C 1 241 4556197 9563.39 1739 1725 476.2
C 15 224 3641528 7642.79 1739 1725 476.2
C 9 38 1712649 3592.56 1739 1725 476.2
D 10 172 2766474 5273.39 1831 1747 524.3
D 15 125 1623700 3093.68 1831 1747 524.3
D 11 176 1194675 2275.37 1831 1747 524.3

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