ASTROSAT CZTI

Data Quality Report

Orbit 45555

Creation date: 2024-06-27T23:13:33.662868
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/AS1A13_093T11_9000006108_45555cztM0_level2.fits modeM0/AS1A13_093T11_9000006108_45555cztM0_level2_quad_clean.evt
Size (bytes)1,487,255,040301,095,360
Size1.4 GB 287.1 MB
Events in quadrant A16,156,0822,001,148
Events in quadrant B9,519,0942,087,043
Events in quadrant C13,564,7221,934,213
Events in quadrant D14,301,8621,745,832

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06213067
B04240746
C05415352
D05648279

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03980
B03980
C03982
D03980

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A195696103.117175%
B195703611.844660%
C1956612026.143310%
D1956414287.299121%

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 20965 19594 180 180 0.86% 0.92%
B 20965 19592 67 67 0.32% 0.34%
C 20965 19592 993 993 4.74% 5.07%
D 20965 19590 1063 1063 5.07% 5.43%

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 6961416 15743.98 2145 2097 442.0
A 10 248 589841 1329.65 2145 2097 442.0
A 13 248 254747 571.57 2145 2097 442.0
B 15 201 617605 1453.11 2155 2087 423.6
B 0 189 194175 453.48 2155 2087 423.6
B 5 172 157217 366.23 2155 2087 423.6
C 12 2 4711569 9572.0 2088 2097 492.0
C 14 254 695676 1409.7 2088 2097 492.0
C 1 3 18059 32.44 2088 2097 492.0
D 1 52 3076307 5959.02 2064 2000 515.9
D 7 38 1590672 3079.37 2064 2000 515.9
D 12 233 747796 1445.6 2064 2000 515.9

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