ASTROSAT CZTI

Data Quality Report

Orbit 16069

Creation date: 2024-06-27T17:17:30.312984
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/AS1A04_230T01_9000002374_16069cztM0_level2.evt modeM0/AS1A04_230T01_9000002374_16069cztM0_level2_quad_clean.evt
Size (bytes)503,349,12093,355,200
Size480.0 MB 89.0 MB
Events in quadrant A3,526,719606,856
Events in quadrant B3,933,610605,616
Events in quadrant C3,193,980587,738
Events in quadrant D4,138,284563,075

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145363
B0160362
C0137702
D0168302

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6655540.811420%
B66551522.283997%
C6655620.931630%
D66552643.966942%

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 7561 6656 18 18 0.24% 0.27%
B 7561 6657 66 66 0.87% 0.99%
C 7561 6656 1 1 0.01% 0.02%
D 7561 6656 208 208 2.75% 3.12%

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 80 318853 1955.01 803 786 162.7
A 15 239 81438 495.73 803 786 162.7
A 9 143 22324 132.38 803 786 162.7
B 0 189 293818 1924.31 805 786 152.3
B 4 173 110019 717.32 805 786 152.3
B 7 220 86440 562.48 805 786 152.3
C 14 238 117391 634.45 778 782 183.8
C 0 207 29137 154.28 778 782 183.8
C 3 233 9143 45.49 778 782 183.8
D 1 52 595115 3042.85 774 753 195.3
D 12 218 387502 1979.97 774 753 195.3
D 2 152 59473 300.62 774 753 195.3

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