ASTROSAT CZTI

Data Quality Report

Orbit 19032

Creation date: 2024-06-27T17:58:18.985082
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/AS1A05_046T01_9000002834_19032cztM0_level2.evt modeM0/AS1A05_046T01_9000002834_19032cztM0_level2_quad_clean.evt
Size (bytes)492,416,640107,510,400
Size469.6 MB 102.5 MB
Events in quadrant A3,177,558708,923
Events in quadrant B3,544,749737,545
Events in quadrant C3,299,762705,618
Events in quadrant D4,461,215662,088

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134382
B0146402
C0136692
D0174342

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6325280.442688%
B6325901.422925%
C6325530.837945%
D63253425.407115%

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 7595 6326 8 8 0.11% 0.13%
B 7595 6326 30 30 0.39% 0.47%
C 7595 6326 1 1 0.01% 0.02%
D 7595 6326 183 183 2.41% 2.89%

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 14 235 52726 319.32 811 796 162.6
A 0 226 7065 38.55 811 796 162.6
A 13 254 6104 32.64 811 796 162.6
B 3 112 137286 891.17 820 802 153.2
B 7 220 108952 706.16 820 802 153.2
B 4 171 32014 203.8 820 802 153.2
C 14 238 124414 663.46 794 802 186.3
C 9 15 43813 230.85 794 802 186.3
C 3 233 30216 157.87 794 802 186.3
D 7 238 741081 3951.99 777 755 187.3
D 1 52 706006 3764.75 777 755 187.3
D 2 234 27648 143.56 777 755 187.3

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