Is my current calorie intake healthy?

You really haven't been at it long enough to know, really, but the early results hint that loss is a lot faster than a 500 calorie daily deficit. But you need more data.

After you have 4-6 weeks of experience at a given calorie level and activity routine, or one full menstrual cycle for people who have cycles, your actual weight loss rate gives you a better estimate of your calorie needs and your deficit than MFP, any other calorie calculator, or even a fitness tracker. It's still an estimate or approximation, since things like water retention shifts introduce some randomness, but it's closer.

23 days is a little short for a valid estimate, plus there's not enough data in your post for a precision estimate, but I'll show rough arithmetic based on what you've told us, and you can be more precise with it as you go along.

You say you've lost 9 pounds in 23 days. If that's entirely body fat, that would be roughly 31500 calories worth of body fat (9 pounds at roughly 3500 calories per pound). Dividing that number of calories by 23 days, we'd estimate you have a calorie deficit of 1370 calories per day, i.e., that you've eaten on average 1370 calories fewer daily than you've burned.

For many people, that would be unhealthfully fast loss, if it continues. Someone well over 300 pounds and under close medical supervision might be able to lose that fast, but it wouldn't be ideal in other cases IMO.

However, you really need more weeks of data to get a reasonable estimate, and if you find that the first couple of weeks are wildly different from what follows, you should ignore them and go for another couple of weeks. That's because the start up weight changes can be more distorted by shifts in water retention and eating patterns than later weeks will be . . . but later, you still need enough weeks to average. If you have menstrual cycles, compare body weight at the same relative point in at least two different cycles to calculate the weight loss weekly averages.

Once you have enough weeks of data to average, you can do the arithmetic as above to turn total pounds lost into estimated calorie loss, and get an estimated deficit.

If your calorie intake has varied from day to day, you can also add up add up each day's calorie intake for that same whole time period, add the total number of calories in the pounds that were lost over that time period, and divide by the number of days in the time period. That would give you average estimated daily weight-maintenance calories during that time period. If you want to lose a pound a week, subtract 500 from that estimated daily maintenance calorie number, and make that your new goal. If you want something different, use arithmetic and that "500 calories per day is a pound a week" concept to work out multiple or partial pounds.

I hope that makes sense. I know most people hated story problems in school arithmetic, and that's a story problem. 😉

I would re read Ann's post for nuance and to understand the limits of your short sample

If your short sample is representative, you believe you are attempting a deficit that is just under 750 Cal a day (tdee 2182 less 1450 calories logged = believed attempted deficit)

Your results, if representative, are 9lbs in 23 days representing a scale reflected deficit of 1369 Cal a day, and an actual tdee of 1440+1369= 2809 Cal a day.

While the truth is probably somewhere in the middle and your tdee is neither as low as 2182 or as high as 2809, the indications are that currently it is probably more than 2182.

If your internal eating compass has always been so accurate one wonders why you would need to manage your weight. Most of us who have found MFP may be a bit less confident in our ability to accurately "FEELZ" our eating cues and can benefit from some outside verification and guidance for our FEELZ.

A 50% deficit off tdee for longer term weight loss is the definition of an excessive deficit

A 20 to 25% (actual scale results reflected) deficit is actually already aggressive for most.

An alternate guidance would be losing 0.25% to 1% of body weight per week for most, with 0.5% or less resulting in better long term adherence.

I hope that you will find the correct for you balance that will enable you to achieve your reasonable goals.