ASTROSAT CZTI

Data Quality Report

Orbit 01398

Creation date: 2024-06-27T14:12:06.040607
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/AS1G04_014T02_9000000232_01398cztM0_level2.evt modeM0/AS1G04_014T02_9000000232_01398cztM0_level2_quad_clean.evt
Size (bytes)1,264,248,00097,395,840
Size1.2 GB 92.9 MB
Events in quadrant A14,491,574561,410
Events in quadrant B8,322,917653,844
Events in quadrant C7,631,237641,640
Events in quadrant D7,417,761643,060

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0478182
B0292861
C0272021
D0266161

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6436189729.474829%
B6436540.839030%
C6436310.481666%
D6436661.025482%

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 7226 6436 3731 3731 51.63% 57.97%
B 7226 6436 320 320 4.43% 4.97%
C 7226 6436 130 130 1.80% 2.02%
D 7226 6436 248 248 3.43% 3.85%

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 15 127 6320577 14849.68 1768 1780 425.5
A 15 233 807065 1892.48 1768 1780 425.5
A 4 32 495136 1159.43 1768 1780 425.5
B 5 191 116669 239.03 2044 2053 479.5
B 12 52 116107 237.86 2044 2053 479.5
B 6 53 91519 186.58 2044 2053 479.5
C 15 241 227253 430.67 1878 1950 523.1
C 3 79 32452 58.31 1878 1950 523.1
C 3 111 26371 46.68 1878 1950 523.1
D 12 22 176104 308.64 1837 1910 564.4
D 2 16 107257 186.66 1837 1910 564.4
D 9 65 86624 150.1 1837 1910 564.4

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