ASTROSAT CZTI

Data Quality Report

Orbit 05031

Creation date: 2024-06-27T14:50:25.498865
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/AS1G05_250T02_9000000638_05031cztM0_level2.evt modeM0/AS1G05_250T02_9000000638_05031cztM0_level2_quad_clean.evt
Size (bytes)478,183,68087,505,920
Size456.0 MB 83.5 MB
Events in quadrant A3,344,485536,738
Events in quadrant B3,585,306539,571
Events in quadrant C3,185,498547,705
Events in quadrant D3,871,967519,278

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153313
B0157082
C0148292
D0169412

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7281340.466969%
B7281510.700453%
C7281160.219750%
D72811191.634391%

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 8811 7283 7 7 0.08% 0.10%
B 8811 7283 5 5 0.06% 0.07%
C 8811 7283 0 0 0.00% 0.00%
D 8811 7283 68 68 0.77% 0.93%

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 15 234 81427 471.08 829 810 171.1
A 13 251 62538 360.71 829 810 171.1
A 0 226 8399 44.34 829 810 171.1
B 15 204 148769 916.68 837 817 161.4
B 4 48 79751 489.06 837 817 161.4
B 0 219 79000 484.4 837 817 161.4
C 1 16 12435 61.47 811 816 189.0
C 13 61 6803 31.67 811 816 189.0
C 9 16 4095 17.35 811 816 189.0
D 13 235 257263 1279.0 802 777 200.5
D 2 14 125888 623.88 802 777 200.5
D 13 53 105729 523.36 802 777 200.5

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